Gortash vs 4 Monks level 12, BG3 Honour mode, no consumable/tadpole

Facing Gortash as the last fight on the 1st day of Act 3.
Durge Bolin: Open Hand Monk 8 / Berserker 4
Tav Paul: Thief 3 / Shadow Monk 9
Shadowheart: Light Cleric 5 / Fighter 1 / Open Hand Monk 6
Lae'zel: Thief 3 / Open Hand Monk 9
The party is 67% Monk now at level 12.
Level 12, day 9.