Cauldron of Souls + Phyrexian Altar + Verdurous Gearhulk + Zealous Conscripts

RG identity

Commander legal

The 4 combo pieces

What must be in place

Zealous Conscripts and Verduous Gearhulk do not have a -1/-1 counter on them.

How to execute it

  1. Activate Cauldron of Souls by tapping it, giving Verdurous Gearhulk and Zealous Conscripts persist until end of turn.
  2. Activate Phyrexian Altar by sacrificing Zealous Conscripts, adding one mana of any color.
  3. When Zealous Conscripts dies, its persist ability triggers, returning itself from your graveyard to the battlefield with a -1/-1 counter on it.
  4. When Zealous Conscripts enters the battlefield, it triggers, untapping Cauldron of Souls.
  5. Activate Phyrexian Altar by sacrificing Verdurous Gearhulk, adding one mana of any color.
  6. When Verdurous Gearhulk dies, its persist ability triggers, returning itself from your graveyard to the battlefield with a -1/-1 counter on it.
  7. When Verdurous Gearhulk enters the battlefield, it triggers, putting a +1/+1 counter on itself and Zealous Conscripts, and two +1/+1 counters on any other creature(s) you control.
  8. Repeat.

What the combo produces