Crèche Inquisitor vs 4 Clerics level 5, BG3 Honour mode, no consumable/tadpole

I found out in this fight that Hamarhraft can't trigger reverberation from Gloves of Belligerent Skies. I had both equipped on Karlach.
Tav François: Knowledge Cleric 5 (planned Knowledge Cleric 12)
Durge Paul: Tempest Cleric 2 / Evocation Wizard 2 / Sorcerer 1 (planned Tempest Cleric 6 / Evocation Wizard 2 / Storm Sorcerer 4)
Lae'zel: War Cleric 5 (planned War Cleric 12)
Karlach: Tempest Cleric 1 / Open Hand Monk 4 (planned Tempest Cleric 6 / Open Hand Monk 6)
The party will be 75% Cleric at level 12. It is currently 65% Cleric.
Level 5, day 3.