Time Warp + Seasons Past + Mystical Tutor

Time Warp

Seasons Past

Mystical Tutor

How it works

1. Cast Seasons Past by paying 4, returning Mystical Tutor, 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 Mystical Tutor by paying , putting Seasons Past on top of your library.
3. Cast Time Warp by paying 3, granting you an extra turn.
4. In the draw step of your next extra turn, draw Mystical Tutor.
5. Repeat each turn.