Temporal Manipulation + Seasons Past + Mystical Tutor

Temporal Manipulation

Seasons Past

Mystical Tutor

How it works

1. Cast Seasons Past by paying 4, returning Mystical Tutor, Temporal Manipulation, 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 Temporal Manipulation by paying 3, granting you an extra turn.
4. In your next extra turn's draw step, draw Seasons Past.
5. Repeat each turn.