Yarus, Roar of the Old Gods + Karlov Watchdog + Ashnod's Altar + Blim, Comedic Genius

Yarus, Roar of the Old Gods

Karlov Watchdog

Ashnod's Altar

Blim, Comedic Genius

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 Ashnod's Altar by sacrificing a face-down creature you control, adding CC.
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. Repeat from step 2.