Ruxa, Patient Professor + Nim Deathmantle + Ashnod's Altar + Kobolds of Kher Keep

Ruxa, Patient Professor

Nim Deathmantle

Ashnod's Altar

Kobolds of Kher Keep

How it works

1. Activate Ashnod's Altar by sacrificing Kobolds of Kher Keep, adding CC.
2. When Kobolds of Kher Keep dies, Nim Deathmantle triggers, choose not to pay for the trigger.
3. Activate Ashnod's Altar by sacrificing Ruxa, adding CC.
4. When Ruxa dies, Nim Deathmantle triggers, causing you to pay 4 to return Ruxa from your graveyard to the battlefield, and attach Nim Deathmantle to it.
5. When Ruxa enters the battlefield, its first ability triggers, returning Kobolds of Kher Keep to your hand from your graveyard.
6. Cast Kobolds of Kher Keep by paying 0.
7. Repeat.