Activate Ashnod's Altar by sacrificing Company Commander, adding ({C} magic symbol) ({C} magic symbol) .
Company Commander dies, triggering Nim Deathmantle, causing you to pay ({4} magic symbol) to return Company Commander from your graveyard to the battlefield and attach Nim Deathmantle to it.
Company Commander enters the battlefield, creating at least two 1/1 Soldier creature tokens.
Activate Ashnod's Altar by sacrificing a Soldier, adding ({C} magic symbol) ({C} magic symbol) .