Brainstorming a setting for a Tier 4 classes only game

[Maat Mons]

I'd make these the "common" classes:

	Caster	Expert	Warrior
Barbarian Lands	Standard Adept	Wilderness Rogue	Barbarian
City-States	Religious Adept	Feat Rogue	Standard Fighter
Mysterious East	Dragon Shaman	Standard Monk	Marshal
Sinister Cults	Shadowcaster	Standard Rogue	Sneak Attack Fighter

I'd make the other allowed classes varying degrees of rare.