I agree about the knight and the gladiator, to me they are both more like backgrounds, or knight becomes a title that has to be earned through game play (that's another issue).
I'm pretty sure that when mediaevel people talked about "knights" they didn't have in mind Sir Elton John and his ilk; the idea of knighthood as a pure honorific is more modern. The standard referent of "knight", as used by a mediavel person, is mounted, heavily armoured warrior who is also a noble (the two statuses track one another, because only nobles have the resources to equip and train themselves in the requisite fashion). Given this, I think it's harmless enough that D&D has fighters as knights, but not wizards or rogues - they might be nobles, but they're not knights - they don't ride horses in heavy armour charging with lances.I totally agree about the knight. I think the fighter subclass should be called the "defender" and the knight should once again be a background. Knighthood is a title. It's a social thing, and it shouldn't be limited to just fighters. There's no good reason why a paladin can't be a knight, or even a wizard. Sir Elton John is a knight in real life, and he's a bard.
I don't think a fighter should be able to be played as an assassin, though. A fighter should be designed to play as a frontline combatant - relying on good hit points, good defences and reliable damage output to win fights. Whereas a mechancially viable assassin needs to be capable of spike damage from stealth, but therefore requires (as a balance trade off) a certain squishiness if events move from stealth to fighting out in the open. In D&D terms, that is a rogue build, not a fighter build.If you really want to strip away all aspects that are more background then you might even have to examine thief and assassin. Both of those are things any class could conceivable do. A fighter who steals or kills for a living could be either of the two.
The same point applies - a fighter or paladin can't be a ninja. A ninja is a form of assassin.For instance a samurai, a wugen, a ninja all should be backgrounds not subclasses. A samurai might be a fighter/warrior, a wugen might be a wizard/warlock, a ninja might be a rogue/assassin. So separation of game world from subclass, yes. Separation of background from game world impossible.
I have no idea... One year ago Backgrounds were a major part of 5e, we had this Race+Class+Background+Specialty setup and I think it was fine, a lot of people liked this structure.
I really liked that approach, I found it flavourful and inspiring. I'm sorry to see it get watered down and dissipated![]()
I'm pretty sure that when mediaevel people talked about "knights" they didn't have in mind Sir Elton John and his ilk; the idea of knighthood as a pure honorific is more modern. The standard referent of "knight", as used by a mediavel person, is mounted, heavily armoured warrior who is also a noble (the two statuses track one another, because only nobles have the resources to equip and train themselves in the requisite fashion)
The same point applies - a fighter or paladin can't be a ninja. A ninja is a form of assassin.
Online etymology doesn't tell me which dictionary it's from, but it fits with my understanding:Wrong order.
The knight was first and foremost a lowly noble, sometimes with land, sometimes without. Still, its the title that mattered. If the knight was wealthy enough, he could go to war with plate mail and a fine warhorse, but so could a wealthy merchant (or a relative of him).
Gladiator is also problematic, but less so. My main problem is that gladiators weren't really fighters. They were entertainers who could fight. In a war they would certainly be better than untrained militia, but less skilled than the average soldier/legionnaire as he would only be used to fighting animals or opponents with horribly unpractical armor and weapons to deliver a show. Becoming a gladiator would, for a D&D fighter, actually be a step down and not up.
Swashbucklers or Musketeers - they could certainly entertain too.
Do you mean "entertain" in the meaning of being a host at a social occasion? Because that's the only way I imagine most musketeers or swashbucklers would entertain - they were not jesters or minstrels, mind you.
I would have to argue the point that there were many a Gladiator that certainly could fight. Whether a gladiator is more practised in the art of tumbling rather than fighting or juggling rather than weaponskill they could certainly include that as part of the option features for the subclass.
I'm aware of Emperor Commodus and his fetish for Gladiatorial combat - I am probably one of the few that preferred Fall of the Roman Empire to Gladiator.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.