This goes back before that. I herd it in 2e and laughed it off then. I have always had people who are interested in playing caster also be interested in improv and “skirt the letter of the law” thinking. Not to say I never saw a fighter go for it but I never saw wizards not do it.
Especially...
Um wow that is a lot.
I made a heman/shera sword that worked like the main power once and it worked well.
As it stands now I would almost never use this unless it was “omg the bad things hit the fan”. I do. Like your divine essence can you explain that more is it like divine rank?
Ironically the knight and slayer are both GREAT examples. They got “more damaged” encounter over and over that just scaled for easy play but you could swap them out for more complex encounter powers
Imagine taking the sneak attack but make it 1d4 at 3rd level then 1 more die every 3 levels (6,9,12,15&18) limit it to 1 hit per turn.
Give them cunning strike like the rogue but with all the battle master maneuvers at level 3 but more as you level that are more powerful.
Tree of Life.
It was a basic d&d idea I stole and used in world building in both 2e and 4e and it has evolved a bit since both. I am now working on bringing it over to 5e.
Clans of elves must protect a tree that gives them power and long life… if the tree dies they die.
Mix in some 3e...
The Cha skills is another hold over.
Way back in the Dino riders times of 2e we didn’t have any social skills or systems really so it was all player skill
Starting with 3e there was a big “bad wrong fun” push to either not use them at all or use them as little as possible to keep player...
I wish it was. Ask around both here and IRL and you will find people who had XP taken from them penalties like disadvantage
And something I have been told but never directly seen but it sound like your group might have
MANSPLAINING. Where the DM THINKS they know better then a real life...
Give up. Trust me. This fight started way back in 3e with the introduction of a default assumed skill system and it has raged on for 23 years. Heck it really started before that when thieves (not rogues) had % skill.
The best you can do is when you find a DM who thinks like this just leave...
Again you are missing the whole point so I give up. Okay you don’t think we should TRY to get our way, so by that logic should not YOU not want to try to get YOUR way and as such it doesn’t matter about the playtest at all… since it doesn’t matter by your. Way of saying this?
Or, hypothetically...