Zacama, Primal Calamity, Cloudstone Curio, and Blessed Sanctuary

Prerequisites

• Zacama, Primal Calamity in hand or in the command zone
• Cloudstone Curio on the battlefield
• Blessed Sanctuary on the battlefield
• Lands you control can tap to produce at least
• You have enough mana to pay for commander tax, if applicable

Steps

1. Activate all mana-producing lands you control by tapping them, adding at least
2. Cast Zacama by paying and commander tax, if applicable
3. Zacama enters the battlefield, triggering itself, Cloudstone Curio and Blessed Sanctuary
4. Resolve the Zacama trigger, untapping all lands you control
5. Resolve the Cloudstone Curio trigger, choosing to return nothing from the battlefield to your hand
6. Resolve the Blessed Sanctuary trigger, creating a 2/2 Unicorn creature token
7. The Unicorn enters the battlefield, triggering Cloudstone Curio, returning Zacama from the battlefield to your hand
8. Repeat

Results

• Infinite creature tokens
• Infinite damage to creatures
• Infinite ETB
• Infinite lifegain
• Infinite lifegain triggers
• Infinite LTB
• Infinite mana lands you control can produce
• Infinite storm count