Cryptolith Rite + Horseshoe Crab + Illusionist's Bracers

GU identity

Commander legal

The 3 combo pieces

What must be in place

Illusionist's Bracers attached to Horseshoe Crab.
Horseshoe Crab does not have summoning sickness.

How to execute it

  1. Activate Horseshoe Crab by tapping it, adding {U}.
  2. Activate Horseshoe Crab by paying {U}.
  3. Illusionist's Bracers triggers, copying Horseshoe Crab's ability.
  4. Resolve the copy of Horseshoe Crab's ability, untapping it.
  5. Activate Horseshoe Crab by tapping it, adding one mana of any color.
  6. Resolve Horseshoe Crab's ability from step 2, untapping it.
  7. Repeat.

What the combo produces