Ghired, Conclave Exile + Nim Deathmantle + Ashnod's Altar

Ghired, Conclave Exile

Nim Deathmantle

Ashnod's Altar

How it works

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