Gale's introduction is so infuriating that I usually kill him on the spot (there are no repercussions for it). If Karlach is going to be a thing, we could sit around the campfire and watch our companions bicker about their 'better-than-yours' backstories while we get to tell them that Tav is indeed from Baldur's Gate. I have a feeling that the writers themselves want to one-up eachother when it comes to companion backstories. (there are characters who have special tadpoles but our tadpoles are even specialer) It's like nanomachines. I guess special special tadpoles are a good explanation for everything now. The above makes it evident that Larian doesn't care about the DnD lore interacting with the mechanics. (I also want to mention that I find it incredibly weird that Mystra seems to 'groom' wizards now when she only got interested in Elminster when he was in his prime.) The only way I can imagine this is through irreversible mind-wipe, that would have more to do with messing around with the soul rather than the actual mind of a character. The gameplay doesn't support this kind of 'depowerment'. This made him lose his proficiency bonus and knowledge about Arcana. Gale somehow went from an archmage who could use Power Word: Blind to a level 1 wizard barely able to cast a single magic missile. It's also a cure for vampirism if we can even call it a cure. It creates a whole new body (mirroring the original with full health) that your soul can inhabit. Gale has a True Resurrection scroll which is the exact solution he needs for all of his problems. Plotholes and the relationship between gameplay and narrative.

I dislike all of the current companions, most of my issues with them were listed before so I'll mention some other things.

Divinity original sin campfire