Smaug the Impenetrable + Metalwork Colossus + Goblin Bombardment + Stridehangar Automaton

Smaug the Impenetrable

Metalwork Colossus

Goblin Bombardment

Stridehangar Automaton

How it works

1. Activate Goblin Bombardment by sacrificing Metalwork Colossus, dealing 1 damage to Smaug.
2. Smaug triggers, creating two artifact tokens due to Stridehangar Automaton.
3. Activate Metalwork Colossus by sacrificing the two artifact tokens, returning Metalwork Colossus from your graveyard to your hand.
4. Cast Metalwork Colossus by paying 0.
5. Repeat.

This delightful loop transforms self-inflicted damage into an endless parade of mechanical destruction by leveraging the indestructible resilience of Smaug the Impenetrable. When Goblin Bombardment hurls Metalwork Colossus at Smaug for a single point of noncombat damage, Stridehangar Automaton steps in to supercharge the resulting Treasure generation into a bountiful harvest of artifact tokens—which are further bolstered by the Automaton's passive anthem keeping your board wide. You can then immediately cash in two of those newly minted treasures to activate Metalwork Colossus, dragging the towering automaton straight from your graveyard back to your hand. Thanks to the staggering cost-reduction provided by your noncreature artifacts, Metalwork Colossus can be recast for a mere zero mana, allowing you to feed it back into Goblin Bombardment and repeat the entire cycle indefinitely.