Yarus, Roar of the Old Gods + Karlov Watchdog + Carrion Feeder + Coveted Falcon

Yarus, Roar of the Old Gods

Karlov Watchdog

Carrion Feeder

Coveted Falcon

How it works

1. Activate Coveted Falcon by paying 1, turning it face up.
2. Coveted Falcon triggers, causing an opponent to gain control of Karlov Watchdog and causing you to draw a card.
3. During the opponent's turn, activate Carrion Feeder by sacrificing a face-down creature you control.
4. 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.
5. Resolve the Carrion Feeder ability.
6. Repeat from step 3.

This loop turns a clever piece of rules interaction into an endless engine for sacrifice and death triggers, fueled entirely by the interplay between your morph-like permanents and the battlefield. By using Coveted Falcon's disguise ability to hand *Karlov Watchdog* over to an opponent during your turn, you weaponize the Watchdog's own static ability—it now prevents *them* from accidentally turning your face-down cards face up, locking them permanently into their 2/2 state. With that lockdown in place, you can feed any face-down creature to Carrion Feeder, letting Yarus, Roar of the Old Gods continuously resurrect it from the graveyard face down without prematurely flipping it. Meanwhile, Yarus's haste-granting static ability and card-drawing triggers keep your offensive momentum rolling, ensuring that your looping sacrifice engine quietly buries the table in value.