Oh, great, she finally left.
Someone should loop in the Caydenite and Ragathiel cultist: we're forming a plan.
(Well, actually, we're forming several plans - independently of each other - and some of our plans are more kindly and thought-through than others. This is one of the better ones.)
First, we need to kill the shadows who would be released when we kill the powerful clerics. Then, we need to kill the powerful clerics. Then, we kill the new priests. Most of them are first-level inquisitors with cure light wounds as half of their spells known, some of them will be much more durable than they were yesterday, but not so durable that swords don't work for killing them. The new 1st-level clerics are a bigger threat: channeled negative energy does 1d6 damage with a saving throw for half, but they can do it 1-7 times each and that'll add up. We should accept surrenders from the newbies if they renounce Hell; a paladin can check them for an Evil aura to keep the bastards honest.
The big risks, as we see them, are that we might miss a shadow, or one or more or most of the shadows survive the damage we can do to them in the first round (this one looks pretty likely, if we're being honest, but we're optimistic that we could chase them and finish them off before they reproduce), hide under the ground, and pop up somewhere else to take vengeance, or one of the shadow-controlling wizards might die in the chaos, or that the Prince of Darkness picks more clerics in the middle of the battle, or that we beat the shadows but lose the fight against the diabolists and their sympathizers because they have a 6th-circle cleric and an 8th-circle wizard along with the rest of the Queen's faction (which possibly includes the Korvosan Guard unless we can talk them into deserting) and also probably a bunch of the Acadamae impers will throw in with the diabolists out of devil-binding necromancer solidarity because oh wait the Ragathielite is wearing an Acadamae uniform maybe I won't finish that sentence.