Yarus, Roar of the Old Gods + Karlov Watchdog + Blim, Comedic Genius + Yahenni, Undying Partisan

Yarus, Roar of the Old Gods

Karlov Watchdog

Blim, Comedic Genius

Yahenni, Undying Partisan

How it works

1. Deal combat damage to an opponent using Blim. Blim triggers, giving control of Karlov Watchdog to an opponent.
2. During the opponent's turn, activate Yahenni by sacrificing a face-down creature you control.
3. When the creature dies, Yarus's second ability triggers, returning it from your graveyard to the battlefield face-down as a 2/2 creature, and then not turning it face-up due to Karlov Watchdog.
4. Resolve the Yahenni ability.
5. Repeat from step 2.