Snowfall

Cumulative upkeep (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.)
Whenever an Island is tapped for mana, its controller may add an additional . If that Island is snow, its controller may add an additional instead. Spend this mana only to pay cumulative upkeep costs.

Mishra’s Factory

: Add .
: Mishra’s Factory becomes a 2/2 Assembly-Worker artifact creature until end of turn. It’s still a land.
: Target Assembly-Worker creature gets +1/+1 until end of turn.

Killer Bees

Flying
: Killer Bees gets +1/+1 until end of turn.

Killer Bees

Flying
: Killer Bees gets +1/+1 until end of turn.

Gaseous Form

Enchant creature
Prevent all combat damage that would be dealt to and dealt by enchanted creature.

Gaseous Form

Enchant creature
Prevent all combat damage that would be dealt to and dealt by enchanted creature.

Greed

, Pay 2 life: Draw a card.

Greed

, Pay 2 life: Draw a card.

Mishra’s Factory

: Add .
: Mishra’s Factory becomes a 2/2 Assembly-Worker artifact creature until end of turn. It’s still a land.
: Target Assembly-Worker creature gets +1/+1 until end of turn.

Conch Horn

, , Sacrifice Conch Horn: Draw two cards, then put a card from your hand on top of your library.

Icatian Scout

, : Target creature gains first strike until end of turn.

Farrelite Priest

: Add . If this ability has been activated four or more times this turn, sacrifice Farrelite Priest at the beginning of the next end step.

Greed

, Pay 2 life: Draw a card.

Avoid Fate

Counter target instant or Aura spell that targets a permanent you control.

Mirror Universe

, Sacrifice Mirror Universe: Exchange life totals with target opponent. Activate this ability only during your upkeep.

Gaseous Form

Enchant creature
Prevent all combat damage that would be dealt to and dealt by enchanted creature.

Killer Bees

Flying
: Killer Bees gets +1/+1 until end of turn.

Cleanse

Destroy all black creatures.

Mishra’s Factory

: Add .
: Mishra’s Factory becomes a 2/2 Assembly-Worker artifact creature until end of turn. It’s still a land.
: Target Assembly-Worker creature gets +1/+1 until end of turn.

Mishra’s Factory

: Add .
: Mishra’s Factory becomes a 2/2 Assembly-Worker artifact creature until end of turn. It’s still a land.
: Target Assembly-Worker creature gets +1/+1 until end of turn.