Eventide

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 their libr...

Enchant creature As long as enchanted creature is white, it gets +1/+2. As long as enchanted creature is black, it gets +2/+1.

Noxious Hatchling enters the battlefield with four -1/-1 counters on it. Wither (This deals damage to creatures in the form of -1/-1 counters.) Whe...

Lifelink Voracious Hatchling enters the battlefield with four -1/-1 counters on it. Whenever you cast a white spell, remove a -1/-1 counter from Vo...

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

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

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

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

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

When Gwyllion Hedge-Mage enters the battlefield, if you control two or more Plains, you may create a 1/1 white Kithkin Soldier creature token. When...

Flying Evershrike gets +2/+2 for each Aura attached to it. {X}{W/B}{W/B}: Return Evershrike from your graveyard to the battlefield. You may put an ...

Flying Bloodied Ghost enters the battlefield with a -1/-1 counter on it.

Exile target card from a graveyard. Create a 1/1 white and black Spirit creature token with flying.

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.

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 ...

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...

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

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.)

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 ...

{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 cou...

{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.