Yarus, Roar of the Old Gods + Master of the Veil + Bloodflow Connoisseur

Yarus, Roar of the Old Gods

Master of the Veil

Bloodflow Connoisseur

How it works

1. Activate Bloodflow Connoisseur by sacrificing Master of the Veil.
2. When Master of the Veil dies, Yarus' second ability triggers, returning Master of the Veil from your graveyard to the battlefield face down, then turning it face up.
3. Master of the Veil triggers, turning itself face down.
4. Resolve the Bloodflow Connoisseur ability, putting a +1/+1 counter on it.
5. Repeat.

This clever loop puts Yarus, Roar of the Old Gods at the center of an endless cycle of sacrifice and resurrection. By feeding Master of the Veil to Bloodflow Connoisseur, you trigger Yarus's ability to return the morph creature straight back to the battlefield face down and instantly flip it face up. That face-up trigger allows Master of the Veil to target itself, turning back face down so the process can begin anew. Bloodflow Connoisseur happily cashes in each iteration for infinite +1/+1 counters while generating an endless supply of sacrifices, leaves-the-battlefield, and enter-the-battlefield triggers.