Anticausal Vestige, Cloudstone Curio, and Mirrorhall Mimic // Ghastly Mimicry

Prerequisites

• Anticausal Vestige on the battlefield
• Cloudstone Curio on the battlefield
• Mirrorhall Mimic // Ghastly Mimicry in hand
• available

Steps

1. Cast Mirrorhall Mimic by paying its mana cost
2. Choose to have it enter as a copy of Anticausal Vestige
3. When Mirrorhall Mimic enters, Cloudstone Curio triggers, returning Anticausal Vestige from the battlefield to your hand
4. When Anticausal Vestige leaves the battlefield, it triggers, causing you to draw a card and and put Anticausal Vestige from your hand onto the battlefield
5. When Anticausal Vestige enters, Cloudstone Curio triggers, returning Mirrorhall Mimic from the battlefield to your hand
6. When Mirrorhall Mimic leaves the battlefield, it triggers, causing you to draw a card and put Mirrorhall Mimic from your hand onto the battlefield as a copy of Anticausal Vestige
7. Repeat from step 2

Results

• Infinite card draw
• Near-infinite ETB
• Infinite draw triggers
• Near-infinite storm count
• Near-infinite LTB