Anticausal Vestige, Cloudstone Curio, and Sakashima the Impostor

Prerequisites

• Anticausal Vestige on the battlefield
• Cloudstone Curio on the battlefield
• Sakashima the Impostor in hand or in the command zone
• plus commander tax if applicable available

Steps

1. Cast Sakashima the Impostor either from your hand or from the command zone by paying plus commander tax if applicable
2. Choose to have it enter as a copy of Anticausal Vestige
3. When Sakashima the Impostor 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 Sakashima the Impostor from the battlefield to your hand
6. When Sakashima the Impostor leaves the battlefield, it triggers, causing you to draw a card and put Sakashima the Impostor 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