Cathodion + Nim Deathmantle + Phyrexian Altar

C identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Phyrexian Altar by sacrificing Cathodion, adding one mana of any color.
  2. Cathodion and Nim Deathmantle trigger.
  3. Resolve the Cathodion trigger, adding {C}{C}{C}.
  4. Resolve the Nim Deathmantle trigger, causing you to pay {4} to return Cathodion from your graveyard to the battlefield, and then attach Nim Deathmantle to it.
  5. Repeat.

What the combo produces