"Ouch" thinks the wee fiend. "Fake rat have hard noggin." He takes another bite, hoping to finish it off (while it's AC still sucks). Mumbles from the LE crowd sound something like "ya right."
The astral construct successfully head butts you (rolled 18) for 6 points of damage. You are at -5 hit points, and dying. Psionic creatures everywhere are cheering. One of their own has finally won a battle.
It is your action next with whatever comes into the arena. Gansk will have to let us know.
The only thing more faintly disturbing than the horned humanoid that 5' steps to 5N 0E is the pile of hit-points remaining on this jello rat. The tiefling fires, then reloads it's crossbow.
The bolt goes wide left (rolled 7-2=5 for long range). The Jello rat charges to 10N5E and delivers a head butt to tiefling girl (rolled 19+2=21 for charge) for 4 points of damage. Tiefling girl has 1 hit point left. Your move.
Wow. This thing is somehow on par with other CR 1/2 creatures? I'm thinking that running into, then out of, the stadium may be best until I get something that flies. On the other hand, maybe the biggest pile of corpses in the infirmary will get a Hall of Fame entry.