Cass, Hand of Vengeance + Umbral Collar Zealot + Ghostly Dancers

Cass, Hand of Vengeance

Umbral Collar Zealot

Ghostly Dancers

How it works

1. Activate Umbral Collar Zealot by sacrificing another creature that has an Aura attached to it.
2. When the creature dies, Cass triggers, returning an Aura that was attached to the creature from your graveyard to the battlefield attached to another creature you control.
3. When the Aura enters the battlefield, Ghostly Dancers triggers, creating a creature token.
4. Resolve the Umbral Collar Zealot ability.
5. Repeat.

This looping engine relies on cycling an Aura back and forth to trigger a cascade of benefits, starting when Umbral Collar Zealot sacrifices an enchanted creature. That death triggers Cass, Hand of Vengeance to rescue the Aura from your graveyard and snap it right back onto the battlefield. As that Aura re-enters, the eerie ability of Ghostly Dancers notices the enchantment arriving and dutifully manufactures a 3/1 white Spirit creature token to keep the cycle going. With a fresh body ready to receive the Aura, Umbral Collar Zealot can repeat the sacrifice while its own surveil ability digs you deeper into your deck.