Deathrender + Koll, the Forgemaster + Phyrexian Altar

RW identity

Commander legal

The 3 combo pieces

What must be in place

Deahrender attached to another nontoken creature you control.

How to execute it

  1. Activate Phyrexian Altar by sacrificing the creature with Deathrender attached, adding one mana of any color.
  2. When the creature dies, Koll and Deathrender trigger.
  3. Resolve the Koll trigger, returning the creature from your graveyard to your hand.
  4. Resolve the Deathrender trigger, putting the creature from your hand onto the battlefield and attaching Deathrender to it.
  5. Repeat.

What the combo produces