Name:Gemini Engine
ManaCost:6
Types:Artifact Creature Construct
PT:3/4
T:Mode$ Attacks | ValidCard$ Card.Self | Execute$ TrigToken | TriggerDescription$ Whenever CARDNAME attacks, create a colorless Construct artifact creature token named Twin that's attacking. Its power is equal to CARDNAME's power and its toughness is equal to CARDNAME's toughness. Sacrifice the token at end of combat.
SVar:TrigToken:DB$ Token | TokenAmount$ 1 | TokenScript$ twin | TokenOwner$ You | TokenPower$ X | TokenToughness$ Y | TokenAttacking$ True | AtEOT$ SacrificeCombat
SVar:X:Count$CardPower
SVar:Y:Count$CardToughness
SVar:HasAttackEffect:TRUE
Oracle: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.