Let's guess more, that'll figure it out
I kid, I kid.
Or do I?
I don't know how many of you DM, but I usually start character creation off with "I prefer PHB. I want anything you are doing outside of that discussed with me prior to you spending your time making a character and realizing it was all for naught. No UA allowed as a pretty hard rule and if you find something you want from there expect that you can't have it."
It sets the tone off right; people do enjoy it because we usually a la carte their abilities as a collaborative thing with me instead of them getting told "no" on the homunculus min/maxed abomination im looking at.
If you play D&D, if you are on D&D forums, you will know there are a lot of things that are ridiculously broken and OP. If I were to create a game like this, it would be a curated set to play with. I can't balance a game for a green flame, booming blade, eladrin, divine soul, sorcadin and at the same time having a winnable encounter for an equivalent level ranger doing 1 shot a round for 7 damage. This will be wide boulevards and high guardrails, but the guardrails will be there.
