Deathrender + Eternal Witness + Gravedigger + Phyrexian Altar

BG identity

Commander legal

The 4 combo pieces

What must be in place

Deathrender attached to Eternal Witness.

How to execute it

  1. Activate Phyrexian Altar by sacrificing Eternal Witness, adding one mana of any color.
  2. Eternal Witness dies, triggering Deathrender, putting Gravedigger from your hand onto the battlefield and attaching Deathrender to it.
  3. Gravedigger enters the battlefield, returning Eternal Witness from your graveyard to your hand.
  4. Activate Phyrexian Altar by sacrificing Gravedigger, adding one mana of any color.
  5. Gravedigger dies, triggering Deathrender, putting Eternal Witness from your hand onto the battlefield and attaching Deathrender to it.
  6. Eternal Witness enters the battlefield, returning Gravedigger from your graveyard to your hand.
  7. Repeat.

What the combo produces