Argh, I'm just having a hard time keeping track of all her SLAs, etc. Repulsion is fine. Let's keep spell turning for the domain spell and remember screen for her arcane casting.
Updating
Pearl the Moon Dragon Working Draft.
Thoughts on 8th level? Antimagic field, dimensional lock, earthquake, firestorm, maybe symbol of insanity sound reasonable to me. Maybe polymorph any object for the domain spell, or perhaps incendiary cloud?
Let's see, she already has
cloak of chaos as an SLA or I'd throw that in.
I propose
greater spell immunity should be in there. Immunity to five specified spells is very useful.
Let's see,
antimagic field and
dimensional lock are great utility spells.
For the domain spell I'd prefer
polymorph any object both because it feels apt for a Chaotic creature and it has way more versatility than the plain 4d6 damage per round of
incendiary cloud.
Frankly, that damage is pathetic for an 8th level 20 ft. radius spell. Any mobile creature can usually just walk out of it within a round so the ongoing damage is of limited utility. It either needs to do more damage, have some napalm like "sticky quality" so that it continues to damage targets who leave its area of effect, or cover a vast area to make it useful for crisping armies of mooks.
Now where was I? That's four spells so far.
Don't care for
symbol of insanity due to its 10 minute casting time - it's impossible to use in combat and once set it lasts until triggered so there's nothing to prevent Pearl placing them weeks, months or centuries in advance.
How about
greater planar ally instead? There are plenty of potent outsiders with 18 HD or less (i.e. the Marilith & Planetar from the SRD which have potent magic for their low HD).
I'd accept
firestorm since I can't think of anything I like better, since 20d6 fire damage over forty 10-ft. cubes is tolerably effective. Although it might be more efficient using her 7th level domain slot for that instead (since it's in Pearl's Fire Domain). Come to think of it,
earthquake is a 7th level Domain spell for her as well.
So that makes my proposed 8th level cleric spell selection
antimagic field,
dimensional lock,
fire storm,
greater planar ally,
greater spell immunity,
polymorph any objectᴰ;