Nim Deathmantle + Ashnod's Altar + Aether Channeler
Nim Deathmantle
Ashnod's Altar
Aether Channeler
Infinite death triggersInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggers
How it works
Activate Ashnod's Altar by sacrificing Aether Channeler, adding CC.
Aether Channeler dies, triggering Nim Deathmantle, causing you to pay 4 to return Aether Channeler from your graveyard to the battlefield, and attach Nim Deathmantle to it.
Aether Channeler enters the battlefield, creating a 1/1 Bird creature token.
Activate Ashnod's Altar by sacrificing the Bird, adding CC.