Mirrodin

Whenever Slith Bloodletter deals combat damage to a player, put a +1/+1 counter on it. {1}{B}: Regenerate Slith Bloodletter.

Enchant artifact Enchanted artifact has "At the beginning of your upkeep, you lose 2 life."

Flying When Reiver Demon enters the battlefield, if you cast it from your hand, destroy all nonartifact, nonblack creatures. They can't be regener...

Choose one — • You draw five cards and you lose 5 life. • Create an X/X black Demon creature token with flying, where X is the number of cards in y...

Flying Nim Shrieker gets +1/+0 for each artifact you control.

Nim Shambler gets +1/+0 for each artifact you control. Sacrifice a creature: Regenerate Nim Shambler.

Target player discards two cards unless they discard an artifact card.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) Whenever Woebearer deals combat damage to a player, you...

Defender (This creature can't attack.) Pay 1 life: Wall of Blood gets +1/+1 until end of turn.

Choose one — • Regenerate each creature you control. • Wail of the Nim deals 1 damage to each creature and each player. Entwine {B} (Choose both if...

Whenever an artifact enters the battlefield, Vermiculos gets +4/+4 until end of turn.

Destroy target nonartifact, nonblack creature. It can't be regenerated.

Choose a card name. Reveal cards from the top of your library until you reveal a card with that name, then put that card into your hand. Exile all ...

Nim Lasher gets +1/+0 for each artifact you control.

Nim Devourer gets +1/+0 for each artifact you control. {B}{B}: Return Nim Devourer from your graveyard to the battlefield, then sacrifice a creatur...

At the beginning of each player's upkeep, that player discards a card.

When Moriok Scavenger enters the battlefield, you may return target artifact creature card from your graveyard to your hand.

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

Search your library for a nonland card and reveal it. Each opponent who cast a spell this turn with the same name as that card loses 6 life. Then s...

Whenever Flayed Nim deals combat damage to a creature, that creature's controller loses that much life. {2}{B}: Regenerate Flayed Nim.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

Protection from white At the beginning of your end step, you lose 4 life. Whenever a creature dies, you gain 2 life.

Whenever an artifact is put into a graveyard from the battlefield, you may have target opponent lose 1 life.

Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.) Whenever enchanted creature atta...