Resources

Magic: The Gathering Oracle Changes

Planar Chaos to Future Sight (Single Change View)

Changes involving "cumulative upkeep"

Old card (Planar Chaos) New card (Future Sight)

Blizzard

{G}{G}

Enchantment

Play Blizzard only if you control a snow land.

Cumulative upkeep {2}

Creatures with flying don't untap during their controllers' untap steps.

Blizzard

{G}{G}

Enchantment

Play Blizzard only if you control a snow land.

Cumulative upkeep {2} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Creatures with flying don't untap during their controllers' untap steps.