>>96700590
>The patterns seems to be it's either self-inflicted, offered in a deal, or allowed to happen as form of martyrdom.
This could work. Lesser deity with portfolio similar to Ilmater (compassion, martyrdom, and so on), that offered herself to primordial beasts to shield mankind from their ferocity, becoming permanently crippled in the process.
Lesser known branch of her church puts emphasis on the "offering yourself to the beasts" part of the legend.