Kiki-Jiki, Mirror Breaker + Eternal Witness + Time Stretch

Kiki-Jiki, Mirror Breaker

Eternal Witness

Time Stretch

How it works

1. Cast Time Stretch by paying 8, causing you to take two extra turns.
2. Activate Kiki-Jiki by tapping it, creating a token copy of Eternal Witness with haste.
3. The token copy of Eternal Witness enters the battlefield, returning Time Stretch from your graveyard to your hand.
4. Repeat each turn.