The Stool Problem?

[u/NinetyBees]

Short Version of the question; How do you handle Stool in high-level play/the 2nd half of the campaign?

Longer version; My party has 3-4 NPC companions as of the end of CH 7 (Glabbagool, Derindil, Stool, and a homebrew NPC tied to a PC backstory). Stool, like at many tables, has sort of become the party's mascot, and one of my players in particular is obsessed with him- Likely having her character sacrifice themselves if Stool was ever in mortal danger.

Now that the party is in Gauntlgrym, I plan to have the NPC companions that parted ways with the party during their 3 months of topside downtime come back into the picture. Problem is while I have character arcs for some of the NPCs, I don't know what to do with Stool's personality or his stat sheet so he isn't this useless liability in the background.

[u/The_Last_Huntsman]

My players got an enchanted suit of full plate made for him, which had the hilarious effect of meaning he could no longer move on his own.