Time Warp + Seasons Past + Mastermind's Acquisition

Time Warp

Seasons Past

Mastermind's Acquisition

How it works

1. Cast Seasons Past by paying 4, returning Mastermind's Acquisition, 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 Mastermind's Acquisition by paying 2, 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.