ToME: the Tales of Maj'Eyal

Banish on paradox mages isn't wholly unlikely to teleport your enemy to outside of the walls. At which point, you're usually stuck, because you can't get to them, and are stuck in the Arena.

I can't reproduce this. I cast literally hundred of banishes on the slinger and it never moved him outside of the arena (the grass around that area is all no teleport).

And in fact I got a couple of fizzles which only show up when the teleportRandom code tries to put them in a no teleport area.

Was there anything else going on?

I know I had a wormhole up and it was vs the gladiator, not the slinger. Perhaps I mistook an invisibility rune?