Assassin, Silent Killer and Heroic Spirit of Assassinations, is one of the seven normal Servant classes summoned for the Holy Grail War; Servants of this class are skilled at operating covertly, stealthy, and silently. This class is one of the weaker classes at fighting, as its members possess low attributes due to not having glorious legends as heroes, so it instead specializes in killing Masters rather than Servants. It is an oddity compared to the more formal knight classes who believe in fair duels and chivalry in combat; they will attack using the most unfair and favorable conditions, and with these conditions, it is possible for an Assassin to match and defeat other Servants. The Assassins' special class ability is "Presence Concealment", which allows them to remain undetected when spying or preparing to ambush their targets.
Shared TropesTropes which apply to most members of the class besides the exceptions should go here.
- Combat Pragmatist: For the most part, this class is not expected to engage in any form of gentlemanly warfare—except maybe some of the martial artists (and the supernaturally-powered ones). If it can kill their opponent efficiently (or can cause the most pain), then an Assassin can be expected to use it, no questions asked. Considering their usually-low parameters, it's really the only way they are expected to gain an edge.
- Critical Hit Class: Most Assassin Servants have some aspect manipulating critical hit damage or Critical Star generation to increase the chance of critical hits in the first place. Namely, their passive Class Skill Presence Concealment increases Critical Star Generation. Some Servants have card decks that help them with critical hits even despite no other skills supporting them, namely a Quick Brave Chain to generate 10 Stars for next turn.
- Gameplay and Story Segregation: Assassin is the class for people like assassins, murderers, executioners and tyrants. Basically, they kill people who can't fight back. However, many large monsters are categorized as Rider class enemies, meaning little girls who are about four and a half feet tall can tear up dragons a thousand times their size with little knives while famous dragon slayers like Siegfried (a Saber) and Saint George (a Rider) struggle to deal with them due to the classes not matching up right.
- Highly Visible Ninja: King Hassan has A-ranked presence concealment despite being a giant in armor covered with flaming skulls, and Cleopatra moonwalks and throws out sparkles every time she attacks, yet still has the skill at B-rank. Apparently it doesn't really matter how you dress or behave.
- Non-Indicative Name: Some of the Assassin Servants are not really assassins or something similar, with some of them being defined by efficient killing methods and others by general sneakiness.
- Professional Killer: The Hashashin are a clan of eclectic, but ultimately reliable hitmen. Many of the other Assassins in the game are martial artists who simply want opportunities to refine or show off their killing technique.
- Psycho for Hire: The rest of them are either mentally unbalanced or outright sadists who revel in creating pain and havoc.
- Rare Random Drop: For a long time, Jack the Ripper, the game's first 5* Assassin, was the only available 5* Assassin in the permanent pool. It took almost two years to have another 5* Assassin released for the permanent pool (Osakabehime). Li Shuwen is story-locked and every other 5* Assassin is limited.
- Stealth Expert: The whole point of the "Presence Concealment" ability, which allows the Assassin class to remain undetected when spying or preparing an ambush. In GO, it translates into a better chance to generate critical stars, as actual stealth has little bearing on gameplay. The game is a little shaky when it comes to tying gameplay to lore, but the implicationnote seems to be that Presence Concealment -> Getting the first strike -> More likely to create an opening -> More likely to get in a critical/powerful blow.
- Tactical RockPaperScissors: In terms of the game, Assassins have an advantage against Riders and a weakness against Casters. They also have the common strength and weakness against Berserkers and resistance from Rulers, as well as an offensive advantage against demon pillars.