Is Gemini Engine legal in Standard, Modern, and Commander?

Gemini Engine is legal in: Modern, Legacy, Vintage, Commander.

Gemini Engine

Q: What type of card is Gemini Engine?

Gemini Engine is an Artifact Creature — Construct. Its oracle text reads: "Whenever this creature attacks, create a colorless Construct artifact creature token named Twin that's attacking. Its power is equal to this creature's power and its toughness is equal to this creature's toughness. Sacrifice the token at end of combat."

Artifact Creature — Construct

Whenever this creature attacks, create a colorless Construct artifact creature token named Twin that's attacking. Its power is equal to this creature's power and its toughness is equal to this creature's toughness. Sacrifice the token at end of combat.

Set Darksteel

Rarity Rare

Mana Value 6

Artist Nottsuo

Collector # 121

Scryfall Gatherer