Oof, I missed the extra bonus spell from the higher Wis. I like refuge for this.
Works for me.
At 8th level, Opal and Pearl have the same number again!
8th—dimensional lock, earthquake, fire storm, greater planar ally, greater spell immunity, polymorph any objectᴰ;
What about earthquake for the domain spell and substituting reverse gravity as one of the "regular" 8th level spells from the druid list. Anything else you'd want to switch?
Eh? But earthquake isn't a domain option.
How about cutting fire storm and having demand be the domain spell, which'd make it:
8th—dimensional lock, demandᴰ, earthquake, greater planar ally, greater spell immunity, polymorph any object;
If you still fancy reverse gravity we can swap another standard spell. Maybe earthquake or greater planar ally?