Zinnia, Valley's Voice, Cloudstone Curio, and Burning-Tree Emissary

Prerequisites

• Zinnia, Valley's Voice on the battlefield
• Cloudstone Curio on the battlefield
• Burning-Tree Emissary in hand
• available

Steps

1. Cast Burning-Tree Emissary by paying , plus an additional for its offspring cost
2. When Burning-Tree Emissary enters the battlefield, it triggers twice and Cloudstone Curio triggers once
3. Resolve the Cloudstone Curio trigger, returning nothing to your hand
4. Resolve the first Burning-Tree Emissary trigger, adding
5. Resolve the second Burning-Tree Emissary trigger, creating a token copy of it that is 1/1
6. When the Burning-Tree Emissary token enters the battlefield, it and Cloudstone Curio trigger
7. Resolve the Cloudstone Curio trigger, returning the nontoken Burning-Tree Emissary from the battlefield to your hand
8. Resolve the Burning-Tree Emissary token's trigger, adding
9. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite storm count
• Infinite creature tokens
• Infinitely powerful Zinnia