Agrus Kos, Eternal Soldier + Jaxis, the Troublemaker + Soulbright Flamekin + Pestermite

Agrus Kos, Eternal Soldier

Jaxis, the Troublemaker

Soulbright Flamekin

Pestermite

How it works

1. Activate Soulbright Flamekin by paying 2, targeting Agrus Kos.
2. Agrus Kos triggers, causing you to pay 1R/W to copy Soulbright Flamekin's ability, targeting every other creature you control.
3. Resolve all Soulbright Flamekin abilities, adding eight and giving creatures you control trample until end of turn.
4. Activate Jaxis by paying , tapping it and discarding a card, targeting Agrus Kos.
5. Agrus Kos triggers, causing you to pay 1R/W to copy Jaxis' ability, targeting every other creature you control.
6. Resolve all Jaxis abilities, creating a token that's a copy of each other creature you control with haste.
7. Put the token Agrus Kos into your graveyard due to the legend rule.
8. The Agrus Kos and Pestermite tokens trigger.
9. Resolve the Agrus Kos trigger, causing you to draw a card.
10. Resolve the Pestermite trigger, untapping Jaxis.
11. Repeat, using the Soulbright Flamekin token instead.

This fascinating loop centers on Agrus Kos, Eternal Soldier, whose ability to copy targeted spells and abilities multiplies any single-target effect across your entire board. By targeting Agrus Kos with Soulbright Flamekin's ability, you can leverage the copied triggers to generate a massive surplus of red mana while giving your team trample. From there, Jaxis, the Troublemaker steps in to duplicate Agrus Kos, leveraging the legend rule alongside Pestermite's clever untap triggers to continuously refresh your resources. The result is a wondrous cascade of infinite creature tokens, card draw, and red mana that overwhelms the table through sheer catalytic persistence!