Magic: The Gathering Comprehensive Rules Changes - Eventide to Shards of Alara

Old rule (Eventide)	New rule (Shards of Alara)
408.2g. [Click to view all changes.]
408.2g. Game actions don't use the stack. The game actions are phasing in and out at the start of the untap step (see rule 302.1), untapping at the start of the untap step (see rule 302.2), drawing a card at the start of the draw step (see rule 304.1), declaring attackers at the start of the declare attackers step (see rule 308.1), declaring blockers at the start of the declare blockers step (see rule 309.1), the active player discarding down to his or her maximum hand size at the start of the cleanup step (see rule 314.1), removing damage from permanents and ending "until end of turn effects during the cleanup step (see rule 314.2), and mana burn as each phase ends (see rule 300.3).	408.2g. Game actions don't use the stack. The game actions are phasing in and out at the start of the untap step (see rule 302.1), untapping at the start of the untap step (see rule 302.2), drawing a card at the start of the draw step (see rule 304.1), declaring attackers at the start of the declare attackers step (see rule 308.1), declaring blockers at the start of the declare blockers step (see rule 309.1), the active player discarding down to his or her maximum hand size at the start of the cleanup step (see rule 314.1), removing damage from permanents and ending "until end of turn" effects during the cleanup step (see rule 314.2), and mana burn as each phase ends (see rule 300.3).

Old rule (Eventide)

New rule (Shards of Alara)

408.2g.

Game actions don't use the stack. The game actions are phasing in and out at the start of the untap step (see rule 302.1), untapping at the start of the untap step (see rule 302.2), drawing a card at the start of the draw step (see rule 304.1), declaring attackers at the start of the declare attackers step (see rule 308.1), declaring blockers at the start of the declare blockers step (see rule 309.1), the active player discarding down to his or her maximum hand size at the start of the cleanup step (see rule 314.1), removing damage from permanents and ending "until end of turn effects during the cleanup step (see rule 314.2), and mana burn as each phase ends (see rule 300.3).

408.2g.

Game actions don't use the stack. The game actions are phasing in and out at the start of the untap step (see rule 302.1), untapping at the start of the untap step (see rule 302.2), drawing a card at the start of the draw step (see rule 304.1), declaring attackers at the start of the declare attackers step (see rule 308.1), declaring blockers at the start of the declare blockers step (see rule 309.1), the active player discarding down to his or her maximum hand size at the start of the cleanup step (see rule 314.1), removing damage from permanents and ending "until end of turn" effects during the cleanup step (see rule 314.2), and mana burn as each phase ends (see rule 300.3).