We're fighting an army of undead, and we are in an Elven city. There is at least 1 druid, and there are probably numerous clerics. Can they combine their skills to create a holy blizzard or holy hurricane?
Here are some you missed.
Lullaby: a level zero spell that can actually help you out a lot. -5 on spot and listen means you can sneak around anywhere.
Inprovisation: Level 1 spell that allows you to automatically hit at higher levels (level 20 bard can use a +10 atack).
Undersong: Hey you're...