Emry, Lurker of the Loch + Extruder + Sewer-veillance Cam

U identity

Commander legal

The 3 combo pieces

What must be in place

You control a creature that can tap to produce at least {U}.

How to execute it

  1. Activate Emry by tapping it, allowing you to cast Sewer-veillance Cam from your graveyard this turn.
  2. Activate a creature by tapping it, adding at least {U}.
  3. Cast Sewer-veillance Cam from your graveyard by paying {U}.
  4. When Sewer-veillance Cam enters, it triggers, untapping Emry.
  5. Activate Extruder by sacrificing Sewer-veillance Cam.
  6. Sewer-veillance Cam triggers, untapping the mana-producing creature.
  7. Resolve the Extruder ability.
  8. Repeat.

What the combo produces