MTG

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Chaotic Backlash deals damage to target player equal to twice the number of white and/or blue permanents they control.

When Soul Snuffers enters the battlefield, put a -1/-1 counter on each creature.

Destroy target nongreen creature. Its controller loses 3 life if you've cast another black spell this turn.

Flying Whenever a player casts a nonblack spell, that player loses 1 life.

Wither (This deals damage to creatures in the form of -1/-1 counters.) Whenever a creature an opponent controls with a -1/-1 counter on it dies, yo...

{T}: Target player exiles a card from their graveyard. Whenever you cast a black spell, you may untap Merrow Bonegnawer.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) Persist (When this creature dies, if it had no -1/-1 co...

At the beginning of your upkeep, destroy target creature with a -1/-1 counter on it.

Wither (This deals damage to creatures in the form of -1/-1 counters.)

Target player discards a card. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

{B/G}{B/G}: Exile target card from a graveyard. You gain 1 life.

Whenever Ashling, the Extinguisher deals combat damage to a player, choose target creature that player controls. The player sacrifices that creature.

{T}: Target red or green creature gets -2/-0 until end of turn.

Search target player's library for up to X cards, where X is the number of Swamps you control, and exile them. Then that player shuffles.

When Endless Horizons enters the battlefield, search your library for any number of Plains cards, exile them, then shuffle. At the beginning of you...

Flying Wither (This deals damage to creatures in the form of -1/-1 counters.) Whenever Needle Specter deals combat damage to a player, that player ...

Whenever a permanent you control becomes untapped, Wake Thrasher gets +1/+1 until end of turn.

Flying {U/R}: Talonrend gets +1/-1 until end of turn.

Create two 1/1 white Kithkin Soldier creature tokens. Retrace (You may cast this card from your graveyard by discarding a land card in addition to ...

{1}{U}, {T}: Return target creature with a counter on it to its owner's hand.

Target player draws a card. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Return all nonblue creatures to their owners' hands.

{T}: Target creature gains flying until end of turn. Whenever you cast a blue spell, you may untap Merrow Levitator.