Artanis, Artisan Master

+2: Create a 1/1 blue Thopter artifact creature token with flying. Then create two 1/1 colorless Servo artifact creature tokens.
-4: Create a 0/1 blue Wizard artifact creature token with indestructible. It has, "Sacrifice this creature: Exile target spell."
-7: Create two 0/4 colorless Artificer artifact creature tokens with shroud. They have, "Sacrifice this creature: End the turn."