Chromatic Orrery + Hex Parasite + Kelpie Guide + Sinking Feeling

UB identity

Commander legal

The 4 combo pieces

What must be in place

Sinking Feeling attached to Kelpie Guide.
Kelpie Guide does not have summoning sickness.

How to execute it

  1. Activate Chromatic Orrery's first ability by tapping it, adding {5}.
  2. Activate Kelpie Guide's first ability by tapping it, untapping Chromatic Orrery.
  3. Activate Kelpie Guide by paying {1} and putting a -1/-1 counter on it, untapping it.
  4. Activate Hex Parasite by paying {2}, removing the -1/-1 counter from Kelpie Guide and giving Hex Parasite +1/+0 until end of turn.
  5. Repeat.
  6. Once you have infinite mana, you may instead use Chromatic Orrery's first ability to draw infinite cards.

What the combo produces