Compost

Whenever a black card is put into an opponent's graveyard from anywhere, you may draw a card.

Root Maze

Withering Boon

As an additional cost to cast this spell, pay 3 life.
Counter target creature spell.

Eladamri's Vineyard

At the beginning of each player's first main phase, that player adds {G}{G}.

Piracy

Until end of turn, you may tap lands you don't control for mana. Spend this mana only to cast spells.

Reap

Return up to X target cards from your graveyard to your hand, where X is the number of black permanents target opponent controls as you cast this spell.

Energy Tap

Tap target untapped creature you control. If you do, add an amount of {C} equal to that creature's mana value.

Mortuary

Whenever a creature is put into your graveyard from the battlefield, put that card on top of your library.

Mana Vapors

Lands target player controls don't untap during their next untap step.

Invasion Plans

All creatures block each combat if able.
The attacking player chooses how each creature blocks each combat.

Mirri's Guile

At the beginning of your upkeep, you may look at the top three cards of your library, then put them back in any order.

Legerdemain

Exchange control of target artifact or creature and another target permanent that shares one of those types with it. (This effect lasts indefinitely.)

Worthy Cause

Buyback {2} (You may pay an additional {2} as you cast this spell. If you do, put this card into your hand as it resolves.)
As an additional cost to cast this spell, sacrifice a creature.
You gain life equal to the sacrificed creature's toughness.