Smaug the Impenetrable + Hypervolt Grasp + Battered Golem

Smaug the Impenetrable

Hypervolt Grasp

Battered Golem

How it works

1. Activate Battered Golem using the ability granted to it by Hypervolt Grasp by tapping it, dealing 1 damage to Smaug.
2. Smaug triggers, creating a Treasure token.
3. When the Treasure enters, Battered Golem triggers, untapping Battered Golem.
4. Repeat.

By enchanting Battered Golem with Hypervolt Grasp, you transform the automaton into a direct-damage engine that can tap to ping Smaug the Impenetrable for 1 noncombat damage. This precise hit forces Smaug to trigger and spit out a Treasure token, and because that Treasure is an artifact entering the battlefield, it immediately satisfies Battered Golem's static untap trigger to ready the creature for another activation. This self-sustaining loop lets you endlessly repeat the process to generate infinite Treasure tokens and colored mana right on the spot.