Smaug the Impenetrable + Gandalf, Spark Starter + Emiel the Blessed

Smaug the Impenetrable

Gandalf, Spark Starter

Emiel the Blessed

How it works

1. Activate Emiel the Blessed by paying 3, blinking Gandalf.
2. When Gandalf enters, it triggers, dealing 3 damage to Smaug.
3. Smaug triggers, creating three Treasure tokens.
4. Activate three Treasures by tapping and sacrificing them, adding 3.
5. Repeat.

This loop relies on Gandalf, Spark Starter entering the battlefield to deal targeted damage to Smaug the Impenetrable, converting that abuse into three Treasure tokens thanks to Smaug's unique damage-trigger. Those Treasures are then sacrificed to feed the generic mana cost needed to activate Emiel the Blessed, whose exile-and-return ability blinks Gandalf back to the battlefield to restart the cycle. While Emiel the Blessed can also leverage its green-white mana ability for +1/+1 counters, the engine is entirely self-sustaining for infinite artifacts and creature triggers using just the targeted burn and the dragon's hoarded wealth.