Garthanos
Arcadian Knight
Arthur is very young and inexperienced when he grabs the token of kingship ie not some high level AD&D character and there are subsequent stories which including slaying dragons (symbolic of kings yes but we are talking a fantasy Arthur arent we and not the Warlord who never became King in the 600s right? ). There are references to him blinding enemies from the light like or of the morning sun shining off that blade (I recall the reference fairly far back). Once you hit more modern movies especially becoming cool around the movie Excalibur where he invokes its power and breaks it in the act of unjustly defeating Lancelot (didnt happen in earlier stories but I say hang that) there is ancient magic in being king which connects you to the land (perhaps you gain hunting and gathering and similar bonuses based on your con when in your land) and the power of kings relates to oaths in the way paladins are empowered by it like when the unforgiven dead are invoked by Aragorn. A more generalized form might be to say those who oath bind with him become empowered (in 5e Oath of the Crown being an extreme form.) Imagine being able to walk into a village and empower all the low levels to be effectively 2 levels higher because they fight in your name. I mentioned early reference (I think it was Welsh? of Arthur and his Primary Companion an Irishman traveling into the otherworld). If that is Lugh Lamfada (Lug Llewanleach? which may have become Lancelot by linguistic fun and games and french authors) then it might have been a very high level Arthur indeed.
I will say arthur was not supposed to be better than Lancelot or even an equal in a fight but it didnt necessarily make him not of epic caliber.
I will say arthur was not supposed to be better than Lancelot or even an equal in a fight but it didnt necessarily make him not of epic caliber.