Resources

Magic Rules Changes

Hour of Devastation to Commander (2017 Edition)

General

Hour of DevastationCommander (2017 Edition)
110.5f.110.5f.

A token that's phased out, or that's in a zone other than the battlefield, ceases to exist. This is a state-based action; see rule 704. (Note that if a token changes zones, applicable triggered abilities will trigger before the token ceases to exist.)

A token that's in a zone other than the battlefield ceases to exist. This is a state-based action; see rule 704. (Note that if a token changes zones, applicable triggered abilities will trigger before the token ceases to exist.)

120.2a.

An instruction to draw multiple cards can be modified by replacement effects that refer to the number of cards drawn. This modification occurs before considering any of the individual card draws. See rule 616.1f.

120.2b.

Some effects say that a player can't draw more than one card each turn. Such an effect applies to individual card draws. Instructions to draw multiple cards may still be partially carried out. However, if an effect offers the player a choice to draw multiple cards, the affected player can't choose to do so. Similarly, the player can't pay a cost that includes drawing multiple cards.

120.2a.120.2c.

If an effect instructs more than one player to draw cards, the active player performs all of his or her draws first, then each other player in turn order does the same.

If an effect instructs more than one player to draw cards, the active player performs all of his or her draws first, then each other player in turn order does the same.

120.2b.120.2d.

If an effect instructs more than one player to draw cards in a game that's using the shared team turns option (such as a Two-Headed Giant game), first each player on the active team, in whatever order that team likes, performs his or her draws, then each player on each nonactive team in turn order does the same.

If an effect instructs more than one player to draw cards in a game that's using the shared team turns option (such as a Two-Headed Giant game), first each player on the active team, in whatever order that team likes, performs his or her draws, then each player on each nonactive team in turn order does the same.

207.2c.207.2c.

An ability word appears in italics at the beginning of some abilities. Ability words are similar to keywords in that they tie together cards that have similar functionality, but they have no special rules meaning and no individual entries in the Comprehensive Rules. The ability words are battalion, bloodrush, channel, chroma, cohort, constellation, converge, council's dilemma, delirium, domain, fateful hour, ferocious, formidable, grandeur, hellbent, heroic, imprint, inspired, join forces, kinship, landfall, lieutenant, metalcraft, morbid, parley, radiance, raid, rally, revolt, spell mastery, strive, sweep, tempting offer, threshold, and will of the council.

An ability word appears in italics at the beginning of some abilities. Ability words are similar to keywords in that they tie together cards that have similar functionality, but they have no special rules meaning and no individual entries in the Comprehensive Rules. The ability words are battalion, bloodrush, channel, chroma, cohort, constellation, converge, council's dilemma, delirium, domain, eminence, fateful hour, ferocious, formidable, grandeur, hellbent, heroic, imprint, inspired, join forces, kinship, landfall, lieutenant, metalcraft, morbid, parley, radiance, raid, rally, revolt, spell mastery, strive, sweep, tempting offer, threshold, and will of the council.

506.1.506.1.

The combat phase has five steps, which proceed in order: beginning of combat, declare attackers, declare blockers, combat damage, and end of combat. The declare blockers and combat damage steps are skipped if no creatures are declared as attackers or put onto the battlefield attacking (see rule 508.5). There are two combat damage steps if any attacking or blocking creature has first strike (see rule 702.7) or double strike (see rule 702.4).

The combat phase has five steps, which proceed in order: beginning of combat, declare attackers, declare blockers, combat damage, and end of combat. The declare blockers and combat damage steps are skipped if no creatures are declared as attackers or put onto the battlefield attacking (see rule 508.8). There are two combat damage steps if any attacking or blocking creature has first strike (see rule 702.7) or double strike (see rule 702.4).

506.6e.506.6e.

If a spell states that it may be cast "only before [a particular point in the combat phase]," but the stated point doesn't exist within the relevant combat phase because the declare blockers step and the combat damage step are skipped (see rule 508.5), then the spell may be cast only before the declare attackers step ends. If the stated point doesn't exist because the relevant combat phase has been skipped, then the spell may be cast only before the precombat main phase ends.

If a spell states that it may be cast "only before [a particular point in the combat phase]," but the stated point doesn't exist within the relevant combat phase because the declare blockers step and the combat damage step are skipped (see rule 508.8), then the spell may be cast only before the declare attackers step ends. If the stated point doesn't exist because the relevant combat phase has been skipped, then the spell may be cast only before the precombat main phase ends.

506.6f.506.6f.

If a spell states that it may be cast "only during combat after blockers are declared," but the declare blockers step is skipped that combat phase (see rule 508.5), then the spell may not be cast during that combat phase.

If a spell states that it may be cast "only during combat after blockers are declared," but the declare blockers step is skipped that combat phase (see rule 508.8), then the spell may not be cast during that combat phase.

508.3.

Triggered abilities that trigger on attackers being declared may have different trigger conditions.

508.3a.

An ability that reads "Whenever [a creature] attacks, . . ." triggers if that creature is declared as an attacker. Similarly, "Whenever [a creature] attacks [a player or planeswalker], . . ." triggers if that creature is declared as an attacker attacking that player or planeswalker. Such abilities won't trigger if a creature is put onto the battlefield attacking.

508.3b.

An ability that reads "Whenever [a player or planeswalker] is attacked, . . ." triggers if one or more creatures are declared as attackers attacking that player or planeswalker. It won't trigger if a creature is put onto the battlefield attacking that player or planeswalker.

508.3c.

An ability that reads "Whenever [a player] attacks with [a creature], . . ." triggers whenever a creature that player controls is declared as an attacker.

508.3d.

An ability that reads "Whenever [a creature] attacks and isn't blocked, . . ." triggers during the declare blockers step, not the declare attackers step. See rule 509.5g.

508.3.508.4.

If a creature is put onto the battlefield attacking, its controller chooses which defending player or which planeswalker a defending player controls it's attacking as it enters the battlefield (unless the effect that put it onto the battlefield specifies what it's attacking). Such creatures are "attacking" but, for the purposes of trigger events and effects, they never "attacked."

If a creature is put onto the battlefield attacking, its controller chooses which defending player or which planeswalker a defending player controls it's attacking as it enters the battlefield (unless the effect that put it onto the battlefield specifies what it's attacking). Such creatures are "attacking" but, for the purposes of trigger events and effects, they never "attacked."

508.3a.508.4a.

If the effect that puts a creature onto the battlefield attacking specifies it's attacking a certain player, and that player is no longer in the game when the effect resolves, the creature is put onto the battlefield but is never considered an attacking creature. The same is true if the effect specifies a creature is put onto the battlefield attacking a planeswalker and that planeswalker is no longer on the battlefield or is no longer a planeswalker when the effect resolves.

If the effect that puts a creature onto the battlefield attacking specifies it's attacking a certain player, and that player is no longer in the game when the effect resolves, the creature is put onto the battlefield but is never considered an attacking creature. The same is true if the effect specifies a creature is put onto the battlefield attacking a planeswalker and that planeswalker is no longer on the battlefield or is no longer a planeswalker when the effect resolves.

508.3b.508.4b.

A creature that's put onto the battlefield attacking isn't affected by requirements or restrictions that apply to the declaration of attackers.

A creature that's put onto the battlefield attacking isn't affected by requirements or restrictions that apply to the declaration of attackers.

508.4.508.5.

If an ability of an attacking creature refers to a defending player, or a spell or ability refers to both an attacking creature and a defending player, then unless otherwise specified, the defending player it's referring to is the player that creature was attacking at the time it became an attacking creature that combat, or the controller of the planeswalker that creature was attacking at the time it became an attacking creature that combat.

If an ability of an attacking creature refers to a defending player, or a spell or ability refers to both an attacking creature and a defending player, then unless otherwise specified, the defending player it's referring to is the player that creature is attacking, or the controller of the planeswalker that creature is attacking. If that creature is no longer attacking, the defending player it's referring to is the player that creature was attacking before it was removed from combat or the controller of the planeswalker that creature was attacking before it was removed from combat.

508.4a.508.5a.

In a multiplayer game, any rule, object, or effect that refers to a "defending player" refers to one specific defending player, not to all of the defending players. If a spell or ability could apply to multiple attacking creatures, the appropriate defending player is individually determined for each of those attacking creatures. If there are multiple defending players that could be chosen, the controller of the spell or ability chooses one.

In a multiplayer game, any rule, object, or effect that refers to a "defending player" refers to one specific defending player, not to all of the defending players. If a spell or ability could apply to multiple attacking creatures, the appropriate defending player is individually determined for each of those attacking creatures. If there are multiple defending players that could be chosen, the controller of the spell or ability chooses one.

508.6.

A player is "attacking [a player]" if the first player controls a creature that is attacking the second player. A player has "attacked [a player]" if the first player declared one or more creatures as attackers attacking the second player.

508.7.

One card (Portal Mage) allows a player to reselect which player or planeswalker a creature is attacking.

508.7a.

The attacking creature isn't removed from combat and it isn't considered to have attacked a second time. That creature is attacking the reselected player or planeswalker, but it's still considered to have attacked the player or planeswalker chosen as it was declared as an attacker.

508.7b.

While reselecting which player or planeswalker a creature is attacking, that creature isn't affected by requirements or restrictions that apply to the declaration of attackers.

508.7c.

The reselected player or planeswalker must be an opponent of the attacking creature's controller, or a planeswalker controlled by an opponent of the attacking creature's controller.

508.7d.

In a multiplayer game not using the attack multiple players option (see rule 802), the reselected player or planeswalker must be the chosen defending player or a planeswalker controlled by that player.

508.7e.

In a multiplayer game using the limited range of influence option (see rule 801), the reselected player or planeswalker must be within the range of influence of the attacking creature's controller.

508.7f.

In a Two-Headed Giant game, the team or planeswalker the creature is attacking is reselected rather than the player or planeswalker. A team reselected this way must be an opposing team of the attacking creature's controller.

508.5.508.8.

If no creatures are declared as attackers or put onto the battlefield attacking, skip the declare blockers and combat damage steps.

If no creatures are declared as attackers or put onto the battlefield attacking, skip the declare blockers and combat damage steps.

509.5.509.5.

Triggered abilities that trigger during the declare blockers step may have different trigger conditions.

Triggered abilities that trigger on blockers being declared may have different trigger conditions.

509.5a.509.5a.

An ability that reads "Whenever [this creature] blocks, . . ." generally triggers only once each combat for that creature, even if it blocks multiple creatures. It triggers if the creature is declared as a blocker. It will also trigger if that creature becomes a blocker as the result of an effect, but only if it wasn't a blocking creature at that time. (See rule 509.1g.) It won't trigger if the creature is put onto the battlefield blocking.

An ability that reads "Whenever [a creature] blocks, . . ." generally triggers only once each combat for that creature, even if it blocks multiple creatures. It triggers if the creature is declared as a blocker. It will also trigger if that creature becomes a blocker as the result of an effect, but only if it wasn't a blocking creature at that time. (See rule 509.1g.) It won't trigger if the creature is put onto the battlefield blocking.

509.5b.509.5b.

An ability that reads "Whenever [this creature] blocks a creature, . . ." triggers once for each attacking creature the creature with the ability blocks. It triggers if the creature is declared as a blocker. It will also trigger if an effect causes that creature to block an attacking creature, but only if it wasn't already blocking that attacking creature at that time. It won't trigger if the creature is put onto the battlefield blocking.

An ability that reads "Whenever [a creature] blocks a creature, . . ." triggers once for each attacking creature the creature with the ability blocks. It triggers if the creature is declared as a blocker. It will also trigger if an effect causes that creature to block an attacking creature, but only if it wasn't already blocking that attacking creature at that time. It won't trigger if the creature is put onto the battlefield blocking.

509.5c.509.5c.

An ability that reads "Whenever [this creature] becomes blocked, . . ." generally triggers only once each combat for that creature, even if it's blocked by multiple creatures. It will trigger if that creature becomes blocked by at least one creature declared as a blocker. It will also trigger if that creature becomes blocked by an effect or by a creature that's put onto the battlefield as a blocker, but only if the attacking creature was an unblocked creature at that time. (See rule 509.1h.)

An ability that reads "Whenever [a creature] becomes blocked, . . ." generally triggers only once each combat for that creature, even if it's blocked by multiple creatures. It will trigger if that creature becomes blocked by at least one creature declared as a blocker. It will also trigger if that creature becomes blocked by an effect or by a creature that's put onto the battlefield as a blocker, but only if the attacking creature was an unblocked creature at that time. (See rule 509.1h.)

509.5d.509.5d.

An ability that reads "Whenever [this creature] becomes blocked by a creature, . . ." triggers once for each creature that blocks the named creature. It triggers if a creature is declared as a blocker for the attacking creature. It will also trigger if an effect causes a creature to block the attacking creature, but only if it wasn't already blocking that attacking creature at that time. In addition, it will trigger if a creature is put onto the battlefield blocking that creature. It won't trigger if the creature becomes blocked by an effect rather than a creature.

An ability that reads "Whenever [a creature] becomes blocked by a creature, . . ." triggers once for each creature that blocks the named creature. It triggers if a creature is declared as a blocker for the attacking creature. It will also trigger if an effect causes a creature to block the attacking creature, but only if it wasn't already blocking that attacking creature at that time. In addition, it will trigger if a creature is put onto the battlefield blocking that creature. It won't trigger if the creature becomes blocked by an effect rather than a creature.

509.5g.509.5g.

An ability that reads "Whenever [this creature] attacks and isn't blocked, . . ." triggers if no creatures are declared as blockers for that creature. It will trigger even if the creature was never declared as an attacker (for example, if it entered the battlefield attacking). It won't trigger if the attacking creature is blocked and then all its blockers are removed from combat.

An ability that reads "Whenever [a creature] attacks and isn't blocked, . . ." triggers if no creatures are declared as blockers for that creature. It will trigger even if the creature was never declared as an attacker (for example, if it entered the battlefield attacking). It won't trigger if the attacking creature is blocked and then all its blockers are removed from combat.

702.25d.702.25d.

The phasing event doesn't actually cause a permanent to change zones or control, even though it's treated as though it's not on the battlefield and not under its controller's control while it's phased out. Zone-change triggers don't trigger when a permanent phases in or out. Counters remain on a permanent while it's phased out. Effects that check a phased-in permanent's history won't treat the phasing event as having caused the permanent to leave or enter the battlefield or its controller's control.

The phasing event doesn't actually cause a permanent to change zones or control, even though it's treated as though it's not on the battlefield and not under its controller's control while it's phased out. Zone-change triggers don't trigger when a permanent phases in or out. Tokens continue to exist on the battlefield while phased out. Counters remain on a permanent while it's phased out. Effects that check a phased-in permanent's history won't treat the phasing event as having caused the permanent to leave or enter the battlefield or its controller's control.

702.25k.

Phased-out tokens cease to exist as a state-based action. See rule 704.5d.

702.25m.702.25k.

If an effect causes a player to skip his or her untap step, the phasing event simply doesn't occur that turn.

If an effect causes a player to skip his or her untap step, the phasing event simply doesn't occur that turn.

702.25n.702.25m.

Multiple instances of phasing on the same permanent are redundant.

Multiple instances of phasing on the same permanent are redundant.

704.5d.704.5d.

If a token is phased out, or is in a zone other than the battlefield, it ceases to exist.

If a token is in a zone other than the battlefield, it ceases to exist.

802.2a.802.2a.

Any rule, object, or effect that refers to a "defending player" refers to one specific defending player, not to all of the defending players. If an ability of an attacking creature refers to a defending player, or a spell or ability refers to both an attacking creature and a defending player, then unless otherwise specified, the defending player it's referring to is the player that creature was attacking at the time it became an attacking creature that combat, or the controller of the planeswalker that creature was attacking at the time it became an attacking creature that combat. If a spell or ability could apply to multiple attacking creatures, the appropriate defending player is individually determined for each of those attacking creatures. If there are multiple defending players that could be chosen, the controller of the spell or ability chooses one.

Example: Rob attacks Alex with Runeclaw Bear and attacks Carissa with a creature with mountainwalk. Whether the creature with mountainwalk can be blocked depends only on whether Carissa controls a Mountain.

Any rule, object, or effect that refers to a "defending player" refers to one specific defending player, not to all of the defending players. If an ability of an attacking creature refers to a defending player, or a spell or ability refers to both an attacking creature and a defending player, then unless otherwise specified, the defending player it's referring to is the player that creature is attacking, or the controller of the planeswalker that creature is attacking. If that creature is no longer attacking, the defending player it's referring to is the player that creature was attacking before it was removed from combat or the controller of the planeswalker that creature was attacking before it was removed from combat. If a spell or ability could apply to multiple attacking creatures, the appropriate defending player is individually determined for each of those attacking creatures. If there are multiple defending players that could be chosen, the controller of the spell or ability chooses one.

Example: Rob attacks Alex with Runeclaw Bear and attacks Carissa with a creature with mountainwalk. Whether the creature with mountainwalk can be blocked depends only on whether Carissa controls a Mountain.

805.10e.805.10e.

Any rule, object, or effect that refers to a "defending player" refers to one specific defending player, not to all of the defending players. If an ability of an attacking creature refers to a defending player, or a spell or ability refers to both an attacking creature and a defending player, then unless otherwise specified, the defending player it's referring to is the player that creature was attacking at the time it became an attacking creature that combat, or the controller of the planeswalker that creature was attacking at the time it became an attacking creature that combat. If a spell or ability could apply to multiple attacking creatures, the appropriate defending player is individually determined for each of those attacking creatures. If there are multiple defending players that could be chosen, the controller of the spell or ability chooses one.

Any rule, object, or effect that refers to a "defending player" refers to one specific defending player, not to all of the defending players. If an ability of an attacking creature refers to a defending player, or a spell or ability refers to both an attacking creature and a defending player, then unless otherwise specified, the defending player it's referring to is the player that creature is attacking, or the controller of the planeswalker that creature is attacking. If that creature is no longer attacking, the defending player it's referring to is the player that creature was attacking before it was removed from combat or the controller of the planeswalker that creature was attacking before it was removed from combat. If a spell or ability could apply to multiple attacking creatures, the appropriate defending player is individually determined for each of those attacking creatures. If there are multiple defending players that could be chosen, the controller of the spell or ability chooses one.