Agatha of the Vile Cauldron + Phyrexian Altar + Plague Belcher + Reaping Willow

Mana needed: {W/B}

BRGW identity

Commander legal

The 4 combo pieces

How to execute it

  1. Activate Reaping Willow by paying {W/B} due to Agatha of the Vile Cauldron and removing two counters from it, returning Plague Belcher from your graveyard to the battlefield.
  2. When Plague Belcher enters, it triggers, putting two -1/-1 counters on Reaping Willow.
  3. Activate Phyrexian Altar by sacrificing Plague Belcher, adding {W/B}.
  4. Repeat.

What the combo produces