Avenger [Edmond Dantes]

He can see in the dark, and perfectly so. It doesn't matter if it's dim, really dark, or complete and total darkness; Dantes can see and navigate easily. It comes from being immersed in a cell without even a spec of light for a very long time.

He has a very violent undercurrent to his general refined nature. He's not foolish or thick-headed enough to attack people on sight, of course, but once Dantes gets involved in a situation of violence, things can spiral out of control very quickly as he lets the beast loose. In combat, he goes into a sort of "battle craze", letting that violence out and becoming nasty and merciless to those who have the misfortune of being his enemy. He is still not a mindless, murderous beast, however, and if his enemy surrenders, he'll give them some leniency... unless they are one of his personal targets. Those he hunts down for revenge will never escape, no matter how far they run.

His skill at disgusing is immensely high. He doesn't impersonate real people, however, instead making up various "characters" for him to take on the persona of whenever he needs them. These "masks" of his are so convincing that very few people, if any, ever question them or who they say they are, making it simple for Dantes to slip around things and whisper into ears he otherwise wouldn't be able to get to.

Because he had experience as a sailor, he's very good with sailing and handling/upkeeping boats and understands what the ship and the crew need (and want) very well. He also knows how to handle the officials to get out of trouble... or around laws, if need be.

He's a very shrewd man. It only took him two and half months to learn everything about what he needed to become a smuggler, to form an "acquaintance" with every single smuggler working on the coast, and to learn all of the secret signs used by them. He knows how to push his intelligence and connections around to spread a "web" out, and he'll use it.

Here.

• Dantes was, in his life, once a very naive and gentle person. He could certainly see the flaws in people and had those he disliked, but in general he was far too trusting of others; even when his beloved fiance's cousin became openly hostile to him (because Cousin wanted Mercédès, Dantes' fiance, but Mercédès only loved Dantes), he didn't think much of it and even tried to befriend him. This all changed with his betrayal, mistreatment, and suicidal-depression (before the Abbe stepped in and gave him hope again), essentially erasing the loving man who had been there before. Even so, the "naive Dantes" isn't completely gone, but Avenger will coldly claim that man died if asked about it -- even if he seems a bit sad.
  
  
• Dantes loathes the malice and irrational hatred that covers the world, and at first glance, it may seem like he's a mad beast, an avenger that burns everything in his way heedless of what it is. However, though he does give that impression, it simply isn't true; Dantes is a "vengeful spirit", fitting of his class, but the flames that consume those around him touch only those that deserve to be burned by them. Innocent people have nothing to fear from him and he does what he can to give them time to evacuate out of a battleground. He also tries his best to keep cross-fire deaths to a minimum (none, if he has his way), though he is far more lax about property and non-life collateral damage. While he may act cold, he does feel remorse if a blameless life is taken by his actions or in his battles; however, the remorse, genuine as it is, is only mild. Such things can no longer haunt the person he's become.
  
  
• From the Type Moon wiki: "If Angra Mainyu, born of hatred, is an avenger that speaks about love, the King of the Cavern, born of love, is an avenger that speaks about hatred. Where one forgives and accepts evil as a inherent part of humanity, the other rages and strikes at it with vengeance."
  
  
• Dantes loves humanity on his deepest level, which is part of why he hates the malice and unjust anger so much; only someone who cared and loved at such a deep, intense level could become an Avenger after being betrayed by a person they loved. Because of this, he can actually be turned quite easily from enemy to ally if shown a genuine kindness or care... or proves their convictions and feelings. To quote an assassin that met him: "One victory against him is enough for him to become an unexpectedly trustworthy ally."
  
  
• He also absolutely adores his Master. Whether in public or private, he feels no need to hold back his fawning over them unless they might be in a vulnerable position or his Master requests him to back off -- in that case, he'll place a distance between them, but still act polite and caring. He simply won't be as lamb-like gentle or doting as he was before.
  
  
• While few would ever top his Master (especially if Dantes has one he can respect on the level of the Abbe), Dantes is still very sweet and caring to those he loves or likes in general as well. Regardless of who or what they are, if they're ones that have one him over, he'll do what he can to help them, from doting to teaching to anything else. For non-combatants, this could be caring for or protecting them; for warriors, he often trains with them and gives them advice if he has expertise in something they do not -- and he certainly takes any advice or lessons they can give him in turn.
  
  
• He struggles to hide when he feels joy, and can almost never actually succeed in doing so. Even as Avenger, joy shows clearly on his face and in his attitude, and if it's a situation where he has to stay in control, he often excuses himself to take a walk so he can compose himself before returning.
  
  
• This doesn't extend to random people, though. While he can be caring to strangers at times, especially if there's nothing else happening around him, in general he views people not of his "group" distantly, mostly indifferent to if they die or suffer around him. The moment one of them turns to help him or show kindness to him, however, Dantes' opinion shifts, and he becomes very fond of people very quickly in such cases.
  
  
• He still isn't a fool, though; he can see right through false kindnesses and doesn't trust them right away. Only when someone's proven their benevolence is true does Dantes let himself relax.
  
  
• He finds more revealing clothing awkward and uncomfortable, even if it's something that's entirely reasonable (such as swim trunks on a beach). He doesn't police this, and doesn't care if others wear it, but he definitely feels out of place without his body mostly covered.
  
  
• When calm or out of battle, Dantes is incredibly chatty -- "social butterfly" is certainly fitting for him, and at times may even be an understatement. He enjoys interacting and talking with people, though if there are people he doesn't know among the group, he'll be intensely on guard. If, however, the group is filled with those he adores and trusts, he will be much calmer and more open, willing to talk directly and about sensitive or secret topics rather than the tight-lipped, roundabout way he speaks with strangers or untrustworthy around him. He even talks a lot while in disguise, confident enough in himself to not feel the need to be silent.
  
  
• He's incredibly intelligent, and has a hunger for it that rivals many scholars; Dantes wants to learn everything he has the chance to learn and will gleefully devour any books or lessons that are offered to him. Whether it's something vital, like survival skills, or even something simple, like how to cook, he doesn't care. He wants to know about it, because his experiences have taught him that even the most minor of skills or information could be useful, whether in his schemes and jobs or simply to make him and his Master more comfortable.
  
  
• His patience is something that would even shock most saints. While Dantes does feel impatient at certain things, he keeps it entirely inside, not allowing it to effect his actions or attitude at all. He waited fourteen years to escape. As a Servant, he can wait as long as he needs to in order to accomplish his goal.
  
  
• He is a very sly and clever person when the need arises. He can feign injury or emotions to a convincing level very easily, in fact, and has no qualms about manipulating people if it can further his goals or his desires. The fact that he's incredibly skilled at lying and He can also come up with plans to handle situations very quickly and at the moment, making him hard to pin down even in surprise attacks.
  
  
• Unsurprisingly, Dantes is very personable of a man. His refined speech and chatty nature make people feel drawn to him, especially with the fact he gives off an impossible to ignore aura of superiority. However, rather than being off-putting, this aura seems to make people even more fond of him, as if he was a king coming down to socialize with even the smallest of the people of his kingdom. Because of this, because of his nature of caring for those he loves, and because he can easily fake kindness or care even for those he dislikes, it's incredibly hard to get any sort of negative opinion against him to stick or turn normal people on him. Dantes knows this, and it's one reason he's very careful with his appearance in public.
  
  
• Despite this, he seems to have a melancholy expression most of the time. It only ever seems to brighten when he's around those he loves, and even then, it never fully goes away.
  
  
• His voice can shift between sweet and rough at the drop of a dime, depending on how he feels and what he's currently doing.
  
  
• He had an immensely high tolerance of suffering as a human, to the point being shot pleased him because it let him know that he could handle it without much problem. As a Servant, especially with his unique build, suffering is essentially nothing to him; Dantes can tolerate and endure even the worst of tortures and suffering that anyone can think to inflict on him, and with a smile on his face the entire time.
  
  
• He doesn't like risky prospects at all. Given the choice, Dantes would much prefer to stick to safe, no-risk things and plans and does all he can to remove every element of risk that he can. However, if a risk is completely unavoidable to get what he wants, then he'll accept it.
  
  
• He's somewhat of a slave to his intense desires. Whether escape, the treasure of Monte Cristo, or revenge, if something is important and massive to him, he becomes obsessed with it until he can either gain it, see it gone, or succeed in it, depending on just what it is. This means he doesn't take kindly to those trying to stop or redirect him, unfortunately, though he will at least somewhat listen to those he loves very deeply.