So, I'm hoping to get into a 3.5 game. 12th-level, gestalt, sources are extremely open, including some third-party material (I'm using Secrets of Pact Magic), though this is a Forgotten Realms game, so anything too specific to other settings (like, say, dragonmarks and warforged) are out.
This game is centered around Rashemen, so I'm making a Hathran. I'm thinking Soul Weaver 12 (a SoPM class; they pretty much get Wizard casting)//Cleric or ArchivistN/Hathran4+, possibly with a level of Factotum in there somewhere.
Now, one of the toys I get to play with is Circle Magic from that fourth level of Hathran, which could be very handy, except... what do I use it for? The caster level boost has potential, but the main spells I know to use it on are higher-level than I can access (Gate, Shapechange).
So, what 6th-level and lower spells Wizard/Cleric spells (and to a lesser extent, maybe general divine spells) can really benefit from Circle Magic?