The Master, Multiplied + Kiki-Jiki, Mirror Breaker + Izzet Chemister + Temporal Manipulation

The Master, Multiplied

Kiki-Jiki, Mirror Breaker

Izzet Chemister

Temporal Manipulation

How it works

1. Cast Temporal Manipulation by paying 3, causing you to take an extra turn after this one.
2. Activate Kiki-Jiki by tapping it, creating a token copy of Izzet Chemister.
3. Activate the Izzet Chemister token's first ability by paying and tapping it, exiling Temporal Manipulation from your graveyard.
4. At the beginning of your end step, Kiki-Jiki triggers, but you cannot sacrifice the Izzet Chemister token due to The Master.
5. On your next turn, activate the Izzet Chemister token's last ability by paying 1, tapping it, and sacrificing it, casting the exiled spell without paying its mana cost.
6. Resolve that spell, causing you to take an extra turn after this one.
7. Repeat from step 2.

This brilliant loop turns an ordinary extra turn spell into an endless sequence by exploiting a clever loophole in sacrifice restrictions. Kiki-Jiki, Mirror Breaker generates a token copy of Izzet Chemister, which immediately uses its first ability to tuck Temporal Manipulation safely away into exile. Normally, the copy would vanish at the end step, but The Master, Multiplied uses its static ability to permanently shield your creature tokens from being sacrificed or exiled by triggered abilities, letting the Izzet Chemister token stick around indefinitely. On your newly granted extra turn, you finally crack the token with its second ability to cast Temporal Manipulation for free, safely looping the entire process to secure infinite turns.