Gemini Engine [Darksteel] Human Knight Ranger pay X life

pay X life

you can find what you're looking for at any time of the day

Set: Ixalan Type: Creature — Merfolk Wizard Rarity: Common Cost: {2}{U} When Watertrap Weaver enters the battlefield

Eldrazi Type: Artifact — Equipment Rarity: Common Cost: {1} Whenever equipped creature attacks

Gemini Engine [Darksteel] Human Knight Ranger pay X lifeSet: Darksteel Type: Artifact Creature Construct Rarity: Rare Cost: {6} Whenever Gemini Engine attacks, create a colorless Construct artifact creature token named Twin that's attacking. Its power is equal to Gemini Engine's power and its toughness is equal to Gemini Engine's toughness. Sacrifice the token at end of combat.