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.)

Whenever you gain life, target opponent loses that much life.

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.) Whenever you tap a Swamp for mana, add an additional {B}.

You may look at the top card of your library any time. You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost. {T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.

At the beginning of your upkeep, you draw a card and you lose 1 life.

Target player draws two cards and loses 2 life.

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

Exile all creature cards from target player's graveyard. You gain 3 life for each card exiled this way.

Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.

Menace When this creature enters, you may destroy another target creature. If a creature is destroyed this way, you gain life equal to its toughness.

Each opponent loses 3 life. You gain life equal to the life lost this way.

At the beginning of your upkeep, this creature deals 1 damage to each opponent. You gain life equal to the damage dealt this way.