Kiki-Jiki, Mirror Breaker + Phantom Steed + Yahenni, Undying Partisan

Kiki-Jiki, Mirror Breaker

Phantom Steed

Yahenni, Undying Partisan

How it works

1. Activate Kiki-Jiki by tapping it, creating a token copy of Phantom Steed.
2. When the Phantom Steed token enters the battlefield, it triggers, exiling Kiki-Jiki until Phantom Steed leaves the battlefield.
3. Activate Yahenni by sacrificing the Phantom Steed token.
4. When the Phantom Steed token dies, Kiki-Jiki is returned from exile to the battlefield.
5. Resolve the Yahenni ability.
6. Repeat.