Argavain

Knight of unwounded and Knight of the iron hand, Agravaine is a loyal smart knight of the round table. He is also a knight of misanthropes leaning misogynist due to experience with his mother Morgan and his Queen Guinevere and thus always treat Artoria as a man no matter how hard you try to convince him. But if the female master manages to impress him, he will treat them either like a reluctant big brother like his case with Gareth or an awkward yet faithful and adoring boyfriend depend like the case with on how far his relationship with them.

Agravaine wears all black armor and have a look more closer to a super villain or an enemy general with his scold and wrinkles than a typical knight charming in white shinny armor like Lancelot or Gawain. To make up for that and lesser battle prowess and power, Argavain make up for it by working smarter, tactically, and some may consider cowardly by using his nails which can immobilize enemy servants and chains which can restrain his opponent, powering up his allies to berserker Lancelot level, and scaling buildings along with other abilities chains provides. He is also quite a family man as proven when he questions Lion King Artoria when she needlessly punish Mordred. And would treat Gareth to his cooking should Gawain was away with his king.

His Noble Phantasm is Iron Commandment where he laugh evil and summon an all consuming flame, then from the flame multiple dark knights, each with power comparable to a Berserker Lancelot, charge foward and overwhleming the opponents until they are destroy.