Could magic overcome, resolve or undo a disability?
.
someone who chose to no longer be at my table after meeting a blind NPC
Sounds ridiculous to me.
Anything in roleplaying is possible, why not this stuff then?
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I have a metal mini-titan in my chat text roleplay with friends. It got born 2 weeks ago (game lore time). It doesn't speak and understands pretty much nothing when other party members try to communicate.
Still they have been happy with my character and they have played normally.
(I have agreed that if it becomes too boring we can find machinery that helps communicating.)
I told about our game to an acquaintance and she seemed happy/intrigued of my character choice!