Retrofitter Foundry

“3: Untap Retrofitter Foundry. <br> 2, T: Create a 1/1 colorless Servo artifact creature token. <br> 1, T, Sacrifice a Servo: Create a 1/1 colorless Thopter artifact creature token with flying. <br> T, Sacrifice a Thopter: Create a 4/4 colorless Construct artifact creature token.”