Cloudstone Curio, Resolute Reinforcements, Phyrexian Altar, and Kaya, Geist Hunter

Prerequisites

• Cloudstone Curio on the battlefield
• Resolute Reinforcements in hand
• Phyrexian Altar on the battlefield
• Kaya, Geist Hunter on the battlefield
• Kaya has at least two loyalty counters on it
• available

Steps

1. Activate Kaya's second loyalty ability by removing two loyalty counters from it, causing you to double all tokens you make this turn
2. Cast Resolute Reinforcements by paying
3. When Resolute Reinforcements enters the battlefield, it and Cloudstone Curio trigger
4. Resolve the Cloudstone Curio trigger, choosing to return nothing to your hand from the battlefield
5. Resolve the Resolute Reinforcements trigger, creating two 1/1 Soldier creature tokens
6. When the Soldiers enter the battlefield, Cloudstone Curio triggers twice
7. Resolve the first trigger, returning Resolute Reinforcements to your hand from the battlefield
8. Resolve the second trigger, choosing to return nothing to your hand from the battlefield
9. Activate Phyrexian Altar twice by sacrificing the Soldiers, adding
10. Repeat from step 2

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count