Archaeomancer + Geth's Summons + Phyrexian Altar

Mana needed: {2}{B}{B}

UB identity

Commander legal

The 3 combo pieces

What must be in place

At least three opponents have at least three poison counters each and at least one creature card each in their graveyards.

How to execute it

  1. Cast Geth's Summons by paying {2}{B}{B}, returning Archaeomancer from your graveyard and three creatures from opponents' graveyards to the battlefield under your control.
  2. Archaeomancer triggers, returning Geth's Summons from your graveyard to your hand.
  3. Activate Phyrexian Altar four times by sacrificing all four creatures you returned in step 1, adding {2}{B}{B}.
  4. Repeat.

What the combo produces