Ashiok's Reaper + Eidolon of Philosophy + Mortuary + Phyrexian Altar

UB identity

Commander legal

The 4 combo pieces

How to execute it

  1. Activate Phyrexian Altar by sacrificing Eidolon of Philosophy, adding {U}.
  2. When Eidolon of Philosophy dies, Mortuary and Ashiok's Reaper trigger.
  3. Resolve the Mortuary trigger, putting Eidolon of Philosophy on top of your library from your graveyard.
  4. Resolve the Ashiok's Render trigger, causing you to draw Eidolon of Philosophy from your library.
  5. Cast Eidolon of Philosophy by paying {U}.
  6. Repeat.

What the combo produces