Kiki-Jiki, Mirror Breaker + Thornbite Staff + Warstorm Surge

Kiki-Jiki, Mirror Breaker

Thornbite Staff

Warstorm Surge

How it works

1. Activate Kiki-Jiki by tapping it, creating a token copy of a nonlegendary creature whose base power is equal to or greater than its toughness with haste.
2. When the creature token enters the battlefield, Warstorm Surge triggers, dealing damage equal to the creature token's power to the creature token.
3. The creature token dies as a state-based action due to having 0 or less toughness, triggering Kiki-Jiki, untapping Kiki-Jiki.
4. Repeat.