Cloudstone Curio, Crimson Kobolds, God-Eternal Oketra, and Rograkh, Son of Rohgahh

Prerequisites

• Cloudstone Curio on the battlefield
• Crimson Kobolds in hand
• God-Eternal Oketra on the battlefield
• Rograkh, Son of Rohgahh in hand

Steps

1. Cast Rograkh by paying
2. Oketra triggers, creating a 4/4 Zombie creature token
3. Cloudstone Curio triggers, returning nothing to your hand
4. Rograkh enters the battlefield, triggering Cloudstone Curio, returning nothing to your hand
5. Cast Crimson Kobolds by paying
6. Oketra triggers, creating a 4/4 Zombie creature token
7. Cloudstone Curio triggers, returning Rograkh to your hand
8. Crimson Kobolds enters the battlefield, triggering Cloudstone Curio, returning nothing to your hand
9. Cast Rograkh by paying
10. Oketra triggers, creating a 4/4 Zombie creature token
11. Cloudstone Curio triggers, returning Crimson Kobolds to your hand
12. Rograkh enters the battlefield, triggering Cloudstone Curio, returning nothing to your hand
13. Repeat from step 5

Results

• Infinite creature tokens
• Infinite ETB
• Infinite LTB
• Infinite storm count