Lathliss, Dragon Queen, Cloudstone Curio, and Dracogenesis

Prerequisites

• Lathliss, Dragon Queen on the battlefield
• Cloudstone Curio on the battlefield
• Dracogenesis on the battlefield
• undefined

Steps

1. Cast the Dragon in your hand without paying its mana cost
2. When the Dragon enters the battlefield, Cloudstone Curio triggers if the Dragon isn't an artifact and Lathliss triggers
3. Resolve the Cloudstone Curio trigger, if applicable, choosing to return nothing
4. Resolve the Lathliss trigger, creating a 5/5 Dragon creature token
5. When the Dragon token enters the battlefield, Cloudstone Curio triggers, returning the Dragon cast in step 1 from the battlefield to your hand
6. Repeat

Results

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