A large spider with the torso of a drow instead of a thorax climbs quickly into the arena. It enters at 0n15e and casts levitate. Can it move up 20ft immediately or must it wait until next round? Jim Morris the drider starts singing, "Driders on the storm..." Bum, bum, ba da ba bum...
So much for the tactical approach. Why did I think that that thing couldn't fly? If Jim weren't so high, he'd be irritated right now. Jim casts defensively, shooting a lightning bolt at the bad guy.
Crap, you could have succeeded on that Concentration check with your d4!
Another nekkid female floats into the arena, this one going to 60n15e10z. Melissa is singing a melodius tune to the dragon. Unlike Veronica, Melissa is actually kind of pretty, in an undead, translucent, not-really-there sorta way.