Sadrik
First Post
For the monk, I agree it is a pitfall for them. They need at least light armor proficiency to be competent. Though, perhaps just give it to them. Barbarians have armor proficiency and unarmed defense. If the Monk selects unarmed defense, then they simply do not use the light armor proficiency. Otherwise they have something. I actually like this a lot and opens up the class to more niches.@ Sadrik:
I guess this could work. Uncanny defense is a 1st level feature, as is Fighting Style. If you do however, I'd say that you need to offer an optional variant to replace the ability for the barbarian. Something that works for an armored barbarian concept (like a dwarven berserker) since that archetype "loses" their primary first level feature. The concept doesn't so much fit the monk thematically or mechanically as it is really the Defining class for unarmored fighting (which is why I think the Fighter archetype needs a brawler subclass to fill that niche).