Smaug the Impenetrable + Metalwork Colossus + Blasting Station + Anointed Procession

Smaug the Impenetrable

Metalwork Colossus

Blasting Station

Anointed Procession

How it works

1. Activate Blasting Station by tapping it and sacrificing Metalwork Colossus, dealing 1 damage to Smaug.
2. Smaug triggers, creating two artifact tokens due to Anointed Procession.
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. When Metalwork Colossus enters, Blasting Station triggers, untapping Blasting Station.
6. Repeat.

This clever loop turns Blasting Station into a dragon-ticking engine by using its own sacrifice ability to ping Smaug the Impenetrable for 1 noncombat damage. Because Smaug is indestructible, he survives the blast and responds by shedding a Treasure token, an output instantly doubled into two tokens thanks to Anointed Procession sitting on the board. Those two freshly minted artifacts serve as the exact fuel Metalwork Colossus needs to pay its graveyard-return ability, and since your total noncreature artifacts easily discount its mana value down to zero, recast it for free. Each time Metalwork Colossus re-enters the battlefield, Blasting Station untaps itself via its own triggered ability, ready to sacrifice the Colossus once more and repeat the cycle indefinitely.