Your move, githyanki Ugulu. The giant ant is at 15N5E. If you do not have the EPH, the psionic githyanki is the same as in the MM, except its psionic abilities are named after powers instead of spells (but they are the same abilities).
Your arrow flies out of the arena (rolled a natural 1). The ant charges to 100N10E and does not come close with its bite (rolled a 7+2=9 for charge. Your move, githUgulu.
Enraged that he has been referred to without the proper formality (githUgulu-San) he drops his bow, draws his greatsword (and it is great) and tries to make the ant regret he was ever hatched.