Gemini Engine | Magic: The Gathering
Formats Gemini Engine is Legal in
Official Oracle Text for Gemini Engine
Official Rulings for Gemini Engine
12/1/2004 : The Twin token won't trigger any abilities that trigger "when [a creature] attacks."
12/1/2004 : The token's power and toughness are set equal to Gemini Engine's power and toughness. If there's a Glorious Anthem on the battlefield (which gives your creatures +1/+1), Gemini Engine is 4/5. The Twin token starts as a 4/5, and then the Anthem gives it +1/+1, making the Twin a 5/6 creature.
12/1/2004 : Once the token has been created, its power and toughness aren't dependent on Gemini Engine's power and toughness, and they won't change if Gemini Engine's power and toughness change.