Mord could also Dimension door himself up onto the ice wall thinking about it, assuming that it's thick enough to stand on. But if he does that he won't be able to cast any attack spells on the same turn. Complications.
Primus is just running out of steam. He can do a few big moves, but without being able to see his enemy, he’s pretty useless. I’m just not sure of what else to do.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.