Nim Deathmantle + Ashnod's Altar + Brood Butcher

Nim Deathmantle

Ashnod's Altar

Brood Butcher

How it works

1. Activate Ashnod's Altar by sacrificing Brood Butcher, adding CC.
2. When Brood Butcher dies, Nim Deathmantle triggers, causing you to pay 4 to return Brood Butcher from your graveyard to the battlefield and attach Nim Deathmantle to it.
3. When Brood Butcher enters, it triggers, creating a creature token.
4. Activate Ashnod's Altar by sacrificing a creature token, adding CC.
5. Repeat.