Declare The Incredible Hulk and The Golden-Gear Colossus as attackers.
The Golden-Gear Colossus triggers, creating two creature tokens.
Holding priority, activate Goblin Bombardment by sacrificing a creature token, dealing 1 damage to The Incredible Hulk.
The Incredible Hulk triggers, putting a +1/+1 counter on it, then untapping it and causing you to get an additional combat phase after this one.
Repeat each combat phase.
This loop leverages the relentless aggression of The Golden-Gear Colossus—born from Tetzin, Gnome Champion's craft ability—to continuously churn out Gnome tokens while fueling a devastating engine with Goblin Bombardment. By redirecting the bombardment's sacrifice to ping Bruce Banner // The Incredible Hulk, his enrage ability triggers to untap him and grant you endless additional combat phases. Each new combat phase lets The Golden-Gear Colossus trigger all over again, ensuring a perpetual cycle of tokens, damage, and combat.