Gemini Engine [Darksteel] Human Knight Ranger "Water is in the air

"Water is in the air

−9: You get an emblem with "Whenever you cast a spell

Set: Battle for Zendikar Prerelease Promos Type: Land — Plains Island Rarity: Rare ({T}: Add {W} or {U}

It can knock a dragon out of the sky

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

Gemini Engine [Darksteel] Human Knight Ranger "Water is in the airSet: 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.