mtg.wtf

Flying
Tetravus enters with three +1/+1 counters on it.
At the beginning of your upkeep, you may remove any number of +1/+1 counters from Tetravus. If you do, create that many 1/1 colorless Tetravite artifact creature tokens. They each have flying and "This creature can't be enchanted."
At the beginning of your upkeep, you may exile any number of tokens created with Tetravus. If you do, put that many +1/+1 counters on Tetravus.

{5}, {T}: Create a 1/1 colorless Insect artifact creature token with flying named Wasp.

As The Rack enters, choose an opponent.
At the beginning of the chosen player's upkeep, The Rack deals X damage to that player, where X is 3 minus the number of cards in their hand.

Whenever a player casts a black spell, you may pay {1}. If you do, you gain 1 life.

Triskelion enters with three +1/+1 counters on it.
Remove a +1/+1 counter from Triskelion: It deals 1 damage to any target.

{0}: Urza's Avenger gets -1/-1 and gains your choice of banding, flying, first strike, or trample until end of turn.

Defender
First strike

{2}, {T}: Put a charge counter on White Mana Battery.
{T}, Remove any number of charge counters from White Mana Battery: Add {W}, then add an additional {W} for each charge counter removed this way.

As long as Winter Orb is untapped, players can't untap more than one land during their untap steps.

Whenever a player casts a green spell, you may pay {1}. If you do, you gain 1 life.

Vigilance

{T}: Add {C}.
{1}: Mishra's Factory becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land.
{T}: Target Assembly-Worker creature gets +1/+1 until end of turn.

{T}: Prevent the next 1 damage that would be dealt to target creature this turn.

{T}: Add {C}.
{T}, Sacrifice Strip Mine: Destroy target land.