Ganax, Astral Hunter + Astral Dragon + Cloudstone Curio + Goldspan Dragon + Xorn

Ganax, Astral Hunter

Astral Dragon

Cloudstone Curio

Goldspan Dragon

Xorn

How it works

1. Cast Astral Dragon by paying 6.
2. When Astral Dragon enters the battlefield, it, Ganax and Cloudstone Curio trigger.
3. Resolve the Cloudstone Curio trigger, choosing to return nothing to your hand from the battlefield.
4. Resolve the Astral Dragon trigger, creating two copies of any noncreature nonartifact permanent that are 3/3 Dragons.
5. When the Dragons enter the battlefield, Cloudstone Curio and Ganax each trigger twice.
6. Resolve the first Cloudstone Curio trigger, returning Astral Dragon from the battlefield to your hand.
7. Resolve the second Cloudstone Curio trigger, choosing to return nothing to your hand from the battlefield.
8. Resolve all Ganax triggers, creating six Treasure artifact tokens.
9. Activate four Treasures by tapping and sacrificing them, adding 6.
10. Repeat.

This dazzling loop relies on Astral Dragon entering the battlefield to clone noncreature permanents, while Cloudstone Curio bounces the original Dragon back to your hand each time your newly minted 3/3 Dragon tokens arrive. Ganax, Astral Hunter ensures that every single Dragon entering the fray floods your board with Treasure tokens, a bounty amplified even further by Xorn's replacement effect. Meanwhile, Goldspan Dragon supercharges those Treasures by doubling their mana production, easily funding the repeated casting of Astral Dragon so the cycle can spin infinitely.