Nim Deathmantle + Ashnod's Altar + Thorin, Mountain-king + Polyraptor

Nim Deathmantle

Ashnod's Altar

Thorin, Mountain-king

Polyraptor

How it works

1. Activate Ashnod's Altar by sacrificing Thorin, adding CC.
2. When Thorin dies, Nim Deathmantle triggers, causing you to pay 4 to return Thorin from your graveyard to the battlefield and attach Nim Deathmantle to it.
3. When Thorin enters, it triggers, attaching Nim Deathmantle to Polyraptor, and then having it deal damage to itself.
4. Polyraptor triggers, creating a creature token.
5. Activate Ashnod's Altar by sacrificing the creature token, adding CC.
6. Repeat.