Jolene, the Plunder Queen + Magmatic Galleon + Ghirapur Aether Grid

Jolene, the Plunder Queen

Magmatic Galleon

Ghirapur Aether Grid

How it works

1. Give an opponent's creature indestructible, if needed.
2. Activate Ghirapur Aether Grid by tapping two artifacts you control, dealing 1 damage to an indestructible creature an opponent controls.
3. If the creature has less than 0 toughness, Magmatic Galleon's second ability triggers, creating two Treasure artifact tokens.
4. Repeat from step 2.
5. Once you have infinite tapped Treasure tokens, you may sacrifice them to Jolene's ability.

This clever loop exploits a clever damage-tracking quirk by continuously dealing excess noncombat damage to an indestructible creature controlled by an opponent using Ghirapur Aether Grid. Each time that damage exceeds the creature's toughness, Magmatic Galleon triggers to generate a Treasure token, an output that Jolene, the Plunder Queen immediately doubles into two Treasures thanks to her replacement effect. You can then tap those newly created artifacts right back into Ghirapur Aether Grid to fuel the next iteration, generating an endless supply of tapped Treasure tokens and artifact entry triggers. Finally, once you have amassed this infinite wealth, you can cash it all in by sacrificing five Treasures at a time to Jolene, the Plunder Queen to pile infinite +1/+1 counters onto her.