When any combination of six creatures named Goblin-Go Charger, Goblin-Go Lorekeeper, Goblin-Go Mechanic, Goblin-Go Boonthief, Goblin-Go Necromancer, Goblin-Go Strategist, Goblin-Go Gangmaker, or Goblin-Go Voidmaker attack you may put Goblin-Go Ultramech onto the battlefield from outside the game tapped and attacking and exile all other creatures you control.
Trample, menace, haste, doublestrike