Karmic Guide + Phantom Steed + Phyrexian Altar

WU identity

Commander legal

The 3 combo pieces

How to execute it

  1. Activate Phyrexian Altar by sacrificing Phantom Steed, adding one mana of any color.
  2. Phantom Steed leaves the battlefield, returning Karmic Guide from exile to the battlefield.
  3. Karmic Guide enters the battlefield, returning Phantom Steed from your graveyard to the battlefield.
  4. Phantom Steed enters the battlefield, exiling Karmic Guide until Phantom Steed leaves the battlefield.
  5. Repeat.

What the combo produces