The character I sort of consider to be my commander, badly injured his leg around the time of Scarlet's attack on LA and later again during HoT. He is a very proud man who never had to consider the physical limitations of his body in that way before and it took him a while to come to terms the fact that his body is fallible. His relationship with his disability was initially pretty strained, he felt useless, he's very bad at being patient with himself and giving himself time to heal. He considers it a personal failing when he cannot accomplish something he sets out to do. So he was initially very upset at his sudden lack of complete control over his body and what it is capable of.
He has since better come to terms with it, but having control taken from him in that way is probably something he still stews on from time to time. He uses a cane as a mobility aid most days after he was convinced to try using one and he begrudgingly admits that it helps a lot.
Stingray and Buck are both amputees, Stingray being a double amputee. I think exploring the resources available to people in terms of prosthetics or accommodation is really interesting in settings like GW2. Both Buck and Stingray have mechanical prosthetics, and both deal with the various aches and pains that come with that. Buck has poor balance due to being unevenly weighted on one side (metal arm, heavy) and since he lost his dominant arm, he has poor handwriting and had to re-learn how to do most fine motor skills left-handed.
Stingray lost both arms and when he was fitted with prosthetics had to have additional reinforcement installed bracketing his spine to support their weight. He had to dramatically change his lifestyle and take steps to accommodate his new reduced mobility and metal fingers. Where he used to simply wear his hair pulled back, he now wears a more protective loc hairstyle that wont get as easily caught in the small joints of his fingers and doesn't require as much maintenance.
Both Buck and Stingray often remove their prosthetics for comfort, especially if it's cold and the metal joints pinch as the metal shrinks. Stingray has a lot of alterations made to his house that allows him to navigate it pretty well without using his hands - things like a mechanism to open doors with his feet - and both have lived with their disability long enough to have acclimated and built their lives around it. While at a glance to most strangers they might not appear disabled, their prostheses aren't indestructible, nor are they always comfortable and if they are removed, destroyed, or malfunction in some way, they are still deeply affected by their disabled status.
Meur is deaf and mute, he does not possess the ability to make oral sounds. He was born after the Pale Tree is recovering from Mordremoth's attack and is still in a very weakened state. He was the first Sylvari to be born post-Mordremoth and was effectively born "premature." He has a strange connection to the Dream that he struggles to articulate.
He was sheltered as a sapling both for his disability and because no one knew if he would be the last fruit the Pale Tree would ever bear, he became stifled by the Grove and longed to venture beyond the safety of it's bough to see the world for himself.
Eventually, when it was clear that Meur was struggling to communicate with others, a Human expert on communicating through hand signs (ASL, for my purposes) was sent for from Divinity's Reach. Basil became Meur's mentor and, being deaf himself, gave Meur someone he could relate to.
His experience in The Dream was not hearing either. Though he isn't sure he would describe it as silent. He struggles to articulate it to other Sylvari. His interpretation of the Dream was significantly more abstract than he has heard anyone else describe.
Despite never hearing or speaking, was still born with an understanding of central Tyrian sentence structure and written language
Can be a little catty sometimes. Will sign about people in front of them if he knows they dont understand him and they are being rude
Before he learned to sign he learned to read lips. It took some time to learn to associate mouth movements with words he intrinsically knew. Despite being relatively adept at lip reading, he struggles to understand people who have a large amount of facial hair that obstructs their lips, charr and asura, people who slur their words when they speak, and people who don't open their mouths as much when they talk.
Charr and Asura are difficult to communicate with without written aid or an interpreter. Their mouth shapes are too different to read and the shape of their hands (as well as their unique cultural backgrounds) necessitated their own unique cultural sign language that does not match the Human signing that Meur is familiar with. He has not yet learned any other cultural signs.
Traveling to Cantha (or any other continent isolated from central tyria) is also difficult for him, as the sign languages in these cultures differs from his as well. He does not enjoy using high tech speech-to-text devices but begrudgingly does so if afforded no other options, if lip reading proves unreliable.
Less of a disability, unless this would be considered one for Sylvari, Meur does not have a bioluminescent glow.