How to Defeat Githyanki Inquisitor

It’s easy to defeat the Githyanki Inquisitor with explosives, even on honor mode.

For example, I just did this with 4 smokepowder barrels. I collected them earlier in the game from the goblin camp, there’s one room with multiple such barrels. I sent them to camp. Then when time for inquisitor, picked them up and walked over to his room. I placed 4 smokepowder barrels around him. Then stepped a little away and used fire bolt to ignite them. They killed him instantly. Then mopping up his cronies was easy without him around.

The inquisitor himself doesn’t drop anything useful for loot however his nearby follower Ardent Jhe’rezath has the Diadem of Arcane Synergy which is quite nice for a stealth archer amongst other classes, and there are a few other items of note in the chests in the room, and of course the Blood of Lathander is nearby.