Kiki-Jiki, Mirror Breaker + Viscera Seer + Hostage Taker

Steps

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