Declare The Incredible Hulk and Stangg as attackers.
Stangg triggers, creating a creature token.
Holding priority, activate Goblin Bombardment by sacrificing the 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 relies on Stangg, Echo Warrior generating a fresh Stangg Twin token every time you declare attackers, feeding directly into Goblin Bombardment as a convenient sacrifice outlet. By sacrificing that token to deal 1 damage to Bruce Banner // The Incredible Hulk, you trigger his enrage ability to not only grow larger with a +1/+1 counter, but also untap him and grant you an additional combat phase. Repeating this process across the extra combats yields infinite death triggers, sacrifice triggers, and combat phases to overwhelm your opponents.