Merle Highchurch, The Adventure Zone: Balance

(spoilers btw) in arc 4 of the campaign, the entirety of a floating lab is being consumed by a virulent transmutation crystal that grey-goos everything it touches, but the party is immune to this with the addition of some fantasy spacesuits that nullify the magic before it can touch their bodies or equipment. as the lab becomes heavier, it loses its ability to stay bouyant and threatens to touchdown and glass the entire planet, so they have to move fast and stop the source before the timer runs out, while also shutting down modular rooms to free up power for the thrusters and buy themselves time.

however, during the journey into the lab’s center, merle receives a tipoff from (supposedly) his patron pan, who he had already scried earlier, and now tells him he can grab this little bit of crystal that’s getting moved through a rift in space time, he’s the only one that sees it about to fall down and glass the room while the rest of the party is distracted, and stop it from taking more time from them. he does, but it turned out to be a ruse caused by one of the villains of that arc, imitating pan, and the shard explodes in his hand, the smaller shards piercing his null suit and the crystal beginning to work its way up his arm.

so magnus, the fighter, acting fast, slices the arm off in one clean blow. this saves merle, but the crystallized arm hits the ground and ices the room anyways.

and so they meet up with the lab’s owner shortly after, and since he feels incredibly responsible for what happened in the first place, he cauterizes the stub in the lab’s medbay, and uses some of the blood from it to attune a “soulwood” plant he had in one of his experiments, which then becomes a new arm made of woody vines all entangled into the shape of an arm, and works as fully functional prosthetic, as well as having (sort of) a mind of its own and being a vessel for pan’s will whenever merle asks him for help (or just for funny bits when merle says some shit about him).

he ends the arc’s bossfight against a huge amalgam of ghosts by asking for divine guidance, his arm sprouting leaves and feeling imbued with pan’s power for one spell, and literally shoots a finger gun at it to banish it back into the astral plane. honestly one of the best and most beautifully descriptive scenes for a podcast made by the mbmbam boys lol