After the beginning of Mooseman's end of turn step, I'll tap Kiki-Jiki to make a copy of Goblin Lackey.
Untap, upkeep, draw, Bloodstained Mire, activate Mire to grab a Mountain, play Goblin Chieftan, tap Kiki-Jiki to make a copy of Goblin Lackey, attack Spiderman with all of my goblins (but...