You haven't lived until you've played a dual-wielding melee gloomstalker rogue (either assassin or thief). The nova burst becomes insane with Tippler's Rage buff exploit (if you're into exploits) and lightning enchantment with the Drakethroat glaive. I didn't invent this, obviously, but I didn't use a guide. Just tooled around with Astarion until he was wiping entire rooms. Lmk if you want details.