Chthonian Nightmare + Phyrexian Altar + Wriggling Grub

Mana needed: {1}{B}

B identity

Commander legal

The 3 combo pieces

How to execute it

  1. Cast Chthonian Nightmare by paying {1}{B}.
  2. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get {E}{E}{E}.
  3. Activate Chthonian Nightmare by paying {E}{E}{E}, sacrificing another creature and returning Chthonian Nightmare from the battlefield to your hand, returning Wriggling Grub from your graveyard to the battlefield.
  4. Activate Phyrexian Altar by sacrificing Wriggling Grub, adding {B}.
  5. When Wriggling Grub dies, it triggers, creating two 1/1 Worm creature tokens.
  6. Activate Phyrexian Altar by sacrificing a Worm, adding {1}.
  7. Repeat.

What the combo produces