Vault Skirge

({B/P} can be paid with either {B} or 2 life.)
Flying
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Pith Driller

({B/P} can be paid with either {B} or 2 life.)
When this creature enters, put a -1/-1 counter on target creature.

Slave of Bolas

Gain control of target creature. Untap that creature. It gains haste until end of turn. Sacrifice it at the beginning of the next end step.

Terminate

Destroy target creature. It can't be regenerated.

Slash Panther

({R/P} can be paid with either {R} or 2 life.)
Haste

Doom Blade

Mountain

Moriok Replica

{1}{B}, Sacrifice this creature: You draw two cards and you lose 2 life.

Swamp

Rakdos Ragemutt

Ruthless Invasion

({R/P} can be paid with either {R} or 2 life.)
Nonartifact creatures can't block this turn.

Rage Extractor

({R/P} can be paid with either {R} or 2 life.)
Whenever you cast a spell with {H} in its mana cost, this artifact deals damage equal to that spell's mana value to any target.