Bolas's Citadel + Mortuary + Phyrexian Dreadnought + Vein Ripper

Mana needed: {1}

B identity

Commander legal

The 4 combo pieces

How to execute it

  1. Cast Phyrexian Dreadnought from the top of your library by paying 1 life.
  2. When Phyrexian Dreadnought enters, it triggers, causing you to sacrifice it.
  3. When Phyrexian Dreadnought dies, Mortuary and Vein Ripper trigger.
  4. Resolve the Mortuary trigger, putting Phyrexian Dreadnought from your graveyard onto the top of your library.
  5. Resolve the Vein Ripper trigger, causing you to gain 2 life and an opponent to lose 2 life.
  6. Repeat.

What the combo produces