Time Warp + Seasons Past + Invert // Invent

Time Warp

Seasons Past

Invert // Invent

How it works

1. Cast Seasons Past by paying 4, returning Invert // Invent, Time Warp, and any number of cards with different mana costs to your hand and putting Seasons Past on the bottom of your library.
2. Cast Invent by paying 4, putting Seasons Past from your library into your hand.
3. Cast Time Warp by paying 3, granting you an extra turn.
4. Repeat each turn.

This cunning loop grants you infinite turns by recycling your entire win condition right through the graveyard. By casting Time Warp, you secure the extra turns needed to run the cycle repeatedly, while Seasons Past does the heavy lifting of returning Time Warp, Invert // Invent, and itself to your hand from the graveyard. The Invent half of Invert // Invent then acts as the tutor, digging straight back into your library to pull Seasons Past right back out so you can cast it again.