Thassa, Deep-Dwelling + Eternal Witness + Time Walk

Thassa, Deep-Dwelling

Eternal Witness

Time Walk

How it works

1. Cast Time Walk by paying 1, getting an extra turn after this one.
2. At the beginning of your end step, Thassa triggers, blinking Eternal Witness.
3. Eternal Witness enters the battlefield, returning Time Walk from your graveyard to your hand.
4. Repeat.

This timeless Vintage loop hinges on the relentless recursion of **Time Walk** to secure infinite extra turns, orchestrated entirely during your end step. **Thassa, Deep-Dwelling** provides the engine by automatically exiling and returning a creature you control every turn, which seamlessly triggers **Eternal Witness** the moment it re-enters the battlefield. That enter-the-battlefield ability lets you pull **Time Walk** right back out of your graveyard and straight into your hand, ready to be cast again on your next (extra) turn to repeat the cycle indefinitely.