Chittering Rats

When Chittering Rats comes into play, target opponent puts a card from his or her hand on top of his or her library.

Font of Return

{3}{B}, Sacrifice Font of Return: Return up to three target creature cards from your graveyard to your hand.

Wrench Mind

Target player discards two cards from his or her hand unless he or she discards an artifact card from his or her hand.

Sign in Blood

Cuombajj Witches

{T}: Cuombajj Witches deals 1 damage to target creature or player. Cuombajj Witches also deals 1 damage to target creature or player of target opponent's choice. Choose your target first.

Tendrils of Corruption

Tendrils of Corruption deals X damage to target creature and you gain X life, where X is the number of Swamps you control.

Chainer's Edict

Target player sacrifices a creature. Flashback {5}{B}{B} (You may play this card from your graveyard for its flashback cost. Then remove it from the game.)

Unearth

Cycling {2} (You may pay {2} and discard this card from your hand to draw a card. Play this ability as an instant.) Choose target creature card in your graveyard with total casting cost 3 or less and put that creature into play.

Corrupt

Corrupt deals 1 damage to target creature or player for each swamp you control. When Corrupt successfully deals damage to a creature or player, gain life equal to that damage.

Crypt Rats

{X}: Crypt Rats deals X damage to each creature and player. Spend only black mana in this way.

Barren Moor

Phyrexian Rager

Disfigure

Target creature gets -2/-2 until end of turn.

Duress

Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.

Gray Merchant of Asphodel

When Gray Merchant of Asphodel enters the battlefield, each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)