Feldon of the Third Path + Worldgorger Dragon + Rings of Brighthearth + Gimli's Reckless Might

Feldon of the Third Path

Worldgorger Dragon

Rings of Brighthearth

Gimli's Reckless Might

How it works

1. Activate any number of permanents by tapping them, adding at least 4.
2. Activate Feldon by paying 2 and tapping it, targeting Worldgorger Dragon.
3. Rings of Brighthearth triggers, causing you to pay 2 to copy Feldon's ability targeting Worldgorger Dragon.
4. Resolve the copy of Feldon's ability, creating a token copy of Worldgorger Dragon.
5. When the Worldgorger Dragon token enters, its first ability triggers, exiling all other permanents you control.
6. Resolve the Feldon ability from step 2, creating a token copy of Worldgorger Dragon.
7. When the Worldgorger Dragon token enters, its first ability triggers, exiling all other permanents you control.
8. When the Worldgorger Dragon token created in step 4 leaves the battlefield, its second ability triggers, returning all cards exiled with it to the battlefield.
9. Repeat.

This ingenious setup harnesses Feldon of the Third Path to repeatedly reanimate Worldgorger Dragon from the graveyard as an artifact creature, setting up a cascading loop of perpetual exiles and returns. While Feldon provides the initial spark, Rings of Brighthearth acts as the critical amplifier by copying Feldon's activation to generate multiple Worldgorger Dragon tokens simultaneously, ensuring the loop feeds continuously into itself without interruption. Meanwhile, Gimli's Reckless Might quietly ensures your entire board stays aggressive by granting haste, though the true magic lies in how constantly blinking your lands and mana-producing permanents generates infinite mana and triggers.