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At the beginning of each opponent's upkeep, if that player has one or fewer cards in hand, they lose 3 life.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.) Scavenge {2}{B} ({2}{B}, Exile this card from your gravey...

Pack Rat's power and toughness are each equal to the number of Rats you control. {2}{B}, Discard a card: Create a token that's a copy of Pack Rat.

Defender Ogre Jailbreaker can attack as though it didn't have defender as long as you control a Gate.

Flying Whenever a creature you control deals combat damage to a player, put that many +1/+1 counters on it.

Target player discards two cards.

As an additional cost to cast this spell, sacrifice a creature. Destroy target creature. Its controller loses 2 life.

Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.) {1}...

Whenever a creature you don't control dies, return it to the battlefield under your control with an additional +1/+1 counter on it at the beginning...

When Drainpipe Vermin dies, you may pay {B}. If you do, target player discards a card.

Flying At the beginning of each combat, any opponent may sacrifice a creature. If a player does, tap Desecration Demon and put a +1/+1 counter on it.

When Azorius Justiciar enters the battlefield, detain up to two target creatures your opponents control. (Until your next turn, those creatures can...

Destroy target creature. Its controller discards a card.

When Voidwielder enters the battlefield, you may return target creature to its owner's hand.

Flying {W}: Tower Drake gets +0/+1 until end of turn.

Counter target spell unless its controller pays {X}. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Whenever Stealer of Secrets deals combat damage to a player, draw a card.

Flying Discard two nonland cards with the same name: Draw four cards.

Soulsworn Spirit can't be blocked. When Soulsworn Spirit enters the battlefield, detain target creature an opponent controls. (Until your next tur...

When Azorius Arrester enters the battlefield, detain target creature an opponent controls. (Until your next turn, that creature can't attack or blo...

When Search the City enters the battlefield, exile the top five cards of your library. Whenever you play a card with the same name as one of the e...

Shuffle all cards from your graveyard into your library. Target player mills that many cards.

Enchant creature Enchanted creature doesn't untap during its controller's untap step.

Target creature you control gets +0/+1 and gains hexproof until end of turn. Overload {1}{U} (You may cast this spell for its overload cost. If yo...