Slash Panther

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

Rakdos Ragemutt

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.)

Mountain

Rage Extractor

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

Pith Driller

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

Moriok Replica

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

Swamp

Terminate

Destroy target creature. It can't be regenerated.

Ruthless Invasion

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

Doom Blade

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.