Does Combat Celebrant + Reconnaissance Combo Works?
This is my interpretation of the combo...please let me know if I'm right or wrong:
The part that messes up is the "Repeat." Combat Celebrant's ability specifies "If Combat Celebrant hasn't been exerted this turn," which while it is untapped, it has been exerted. You may notice it's the only creature that has this clause, specifically to keep you from getting infinite combat steps so easily.