Anticausal Vestige + Cloudstone Curio + Quicksilver Gargantuan

Anticausal Vestige

Cloudstone Curio

Quicksilver Gargantuan

How it works

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

This clever loop relies on Quicksilver Gargantuan entering the battlefield as a copy of Anticausal Vestige while Cloudstone Curio sits ready to bounce your permanents. Because the copy triggers its own leaving-the-battlefield ability whenever it leaves, bouncing either creature allows you to immediately cheat it back into play from your hand—resetting the cycle and triggering Cloudstone Curio to bounce the other. By continuously swapping the two creatures back and forth between the battlefield and your hand, you feed an endless loop of card draw and entries.