Agrus Kos, Eternal Soldier + Jaxis, the Troublemaker + Soulbright Flamekin + Village Bell-Ringer

Decks

How it works

Activate Soulbright Flamekin by paying , targeting Agrus Kos.
Agrus Kos triggers, causing you to pay to copy Soulbright Flamekin's ability, targeting every other creature you control.
Resolve all Soulbright Flamekin abilities, adding eight and giving creatures you control trample until end of turn.
Activate Jaxis by paying , tapping it and discarding a card, targeting Agrus Kos.
Agrus Kos triggers, causing you to pay to copy Jaxis' ability, targeting every other creature you control.
Resolve all Jaxis abilities, creating a token that's a copy of each other creature you control with haste.
Put the token Agrus Kos into your graveyard due to the legend rule.
The Agrus Kos and Village Bell-Ringer tokens trigger.
Resolve the Agrus Kos trigger, causing you to draw a card.
Resolve the Village Bell-Ringer trigger, untapping all creatures you control.
Repeat, using the Soulbright Flamekin token instead.

In which brackets is this combo allowed, per Spellbook's Exhibition tier?

1–2 · Exhibition & Core

Allowed in this bracket.

3 · Upgraded

Allowed in this bracket.

4–5 · Optimized & cEDH

All combos are allowed.