Estrid's Invocation + Myth Unbound + Phyrexian Altar + Rograkh, Son of Rohgahh

GUR identity

Commander legal

The 4 combo pieces

What must be in place

Estrid's Invocation is a copy of Myth Unbound.

How to execute it

  1. Activate Phyrexian Altar by sacrificing Rograkh, adding one mana of any color.
  2. Choose to have Rograkh return to the command zone from your graveyard.
  3. Both copies of Myth Unbound trigger, causing you to draw two cards.
  4. Cast Rograkh from the command zone by paying {0} due to the cost reductions from both copies of Myth Unbound.
  5. Repeat.

What the combo produces