Gyruda, Doom of Depths + Mortuary + Phyrexian Altar

Mana needed: {4}{U/B}{U/B} plus enough mana to pay for commander tax, if applicable

UB identity

Commander legal

The 3 combo pieces

How to execute it

  1. Cast Gyruda by paying {4}{U/B}{U/B} and commander tax, if applicable.
  2. Gyruda enters the battlefield, triggering its ability.
  3. Holding priority, activate Phyrexian Altar by sacrificing Gyruda, adding one mana of any color.
  4. Gyruda dies, triggering Mortuary, putting Gyruda on top of your library from your graveyard.
  5. Resolve the Gyruda ability from step 2, causing each player to mill four cards and you to return Gyruda from your graveyard to the battlefield.
  6. Repeat from step 2.

What the combo produces