bedir than
Full Moon Storyteller
There is that, the only thing is that a lot of the ideas are "more damage" which I am fine with but "moar damage" is also subclass on the Ranger (hunter) and the Paladin (Avenger).
The existing classes are fairly iconic for a reason and the Paladin perhaps has very iconic abilities, fighter, rogues, ranger for example are mostly titles now. I would rather have a mechanically good class that works over a thing that may or may not work. The EKs war mage thing could be the gish thing, cast a spell and attack. Might be able to word it so you can substitute an attack and since I do not plan of giving this class 3 ro 4 attacks it could work.
I'm fine if we end up with a better gish than the EK even if its not that original, the EK will be the better fighter. The war mage thing could be level 6 ability perhaps as the fighter gets an ASI and the Paladin gets the aura.
What's the narrative/legendary character represented by your idea that is unique to your idea?
Sure, we could wind up disagreeing about how they classify with your gish build against Eldritch Knight, Bladesinger, Valor Bard, Hex Blade, but currently I'm not seeing any concept that is represented by those in any way.
I'm working on a mere subclass for the Rogue and the first approach to what the powers will be is "Who is this?"
5e is more narrative in language, a lot of how classes/archetypes are built are about how those powers are described in natural language.