When this creature enters, 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.)

When this creature enters, target opponent puts a card from their hand on top of their library.

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

When this creature enters, you draw a card and you lose 1 life.

Target player draws two cards and loses 2 life.

This land enters tapped. {T}: Add {B}. Cycling {B} ({B}, Discard this card: Draw a card.)

Destroy target nonlegendary creature.

{T}: This creature deals 1 damage to any target and 1 damage to any target of an opponent's choice.

This spell costs {3} less to cast if a creature died this turn. Flying, deathtouch

Destroy target non-Swamp land. If that land was nonbasic, Choking Sands deals 2 damage to the land's controller.

Target player sacrifices a creature of their choice and loses 1 life.

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

Target player sacrifices a creature of their choice. Flashback {5}{B}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Target creature gets -1/-1 until end of turn for each Swamp you control.

Exile target creature.