#feeblemind spell

I like the idea that someone, usually strong and powerful, someone who pulls their weight, is suddenly incapable of basically everything

I like the idea that one day point blank the character needs help with buttons because they don't understand them

I like how all their friends/chosen family/partner/whoever all then turn around and say "time to help them when they can't help themselves" and pick up their weight, and take care of them until they can be cured