Re: Splat It! - Permanency Support (Work in Progress)
I'd say that any 24 hour duration buff spell without an expensive M component should be included-- you're essentially trading XP to free up a spell slot. Endure elements and mind blank come to mind.
Totally house rules territory, but have you considered removing permanency from the spell list as simply allowing anyone who can cast an appropriate spell to make it permanent by spending XP? One of my pet peeves.