Eventide

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...

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

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.

Whenever you cast a spell that's both white and black, this creature has base power and toughness 4/4 until end of turn and gains flying until end ...

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

This creature enters with four -1/-1 counters on it. Wither (This deals damage to creatures in the form of -1/-1 counters.) Whenever you cast a bla...

{1}{B/G}: Regenerate this creature.

Each player returns each creature card from their graveyard to the battlefield with an additional -1/-1 counter on it.

{B/G}, Remove a -1/-1 counter from a creature you control: This creature gets +3/+3 until end of turn.

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.)

Wither (This deals damage to creatures in the form of -1/-1 counters.) Persist (When this creature dies, if it had no -1/-1 counters on it, return ...

{W/B}{W/B}{W/B}: This creature gets +3/+3 until end of turn. Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the ...

Indestructible Whenever Sapling of Colfenor attacks, reveal the top card of your library. If it's a creature card, you gain life equal to that card...

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

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

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

When this creature enters, put a -1/-1 counter on each creature.

Swampwalk, forestwalk (This creature can't be blocked as long as defending player controls a Swamp or a Forest.)

Protection from white and from black {W/B}: This creature gains flying until end of turn. {W/B}: This creature gains first strike until end of turn...

Target player loses 2 life and you gain 2 life. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying...

Target opponent reveals their hand. You choose a green or white creature card from it. You gain life equal to that creature card's toughness, then ...

Chroma — Umbra Stalker's power and toughness are each equal to the number of black mana symbols in the mana costs of cards in your graveyard.

Exile target creature.

Lifelink This creature enters with four -1/-1 counters on it. Whenever you cast a white spell, remove a -1/-1 counter from this creature. Whenever ...