Temporal Manipulation + Seasons Past + Mastermind's Acquisition

Temporal Manipulation

Seasons Past

Mastermind's Acquisition

How it works

1. Cast Seasons Past by paying 4, returning Mastermind's Acquisition, 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 Mastermind's Acquisition by paying 2, putting Seasons Past from your library into your hand.
3. Cast Temporal Manipulation by paying 3, granting you an extra turn.
4. Repeat each turn.