Sethron, Hurloon General + Cloudstone Curio + Ragemonger + Wee Champion

Sethron, Hurloon General

Cloudstone Curio

Ragemonger

Wee Champion

How it works

1. Cast Wee Champion by paying 0 due to Ragemonger.
2. When Wee Champion enters the battlefield, Sethron and Cloudstone Curio trigger.
3. Resolve the Cloudstone Curio trigger, choosing to return nothing to your hand.
4. Resolve the Sethron trigger, creating a 2/3 Minotaur creature token.
5. When the Minotaur token enters the battlefield, Cloudstone Curio triggers, returning Wee Champion to your hand from the battlefield.
6. Repeat.

This clever loop relies on Ragemonger to completely eliminate the colored mana requirement of Wee Champion, allowing you to cast the Minotaur for free. As Wee Champion enters the battlefield, Sethron, Hurloon General triggers to make a 2/3 Minotaur token, which in turn causes Cloudstone Curio to trigger and bounce Wee Champion right back to your hand. Because Cloudstone Curio lets you repeat this exchange indefinitely without ever needing to resolve its first trigger for anything more, you can continuously recast Wee Champion to flood the board with endless tokens and trigger infinite enters-the-battlefield effects.