Anticausal Vestige + Cloudstone Curio + Spark Double

Anticausal Vestige

Cloudstone Curio

Spark Double

How it works

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

This clever loop harnesses the nonlegendary copying power of Spark Double to turn Anticausal Vestige into a self-sustaining cycle, all orchestrated by Cloudstone Curio's watchful presence. Whenever one of these creatures enters the battlefield, the Curio triggers to bounce the other back to your hand, which immediately forces the departing permanent's leaves-the-battlefield ability to trigger. That trigger draws you a card and effortlessly drops the bounced card right back onto the battlefield—allowing Spark Double and Anticausal Vestige to endlessly trade places in an infinite loop of entry and exit.