I can appreciate devil's advocate. Ya, it's gamey unless the mechanic solidifies towards some narrative. But +1 on damage isn't gamey, that's power smash, and so I could do a side of gamey.Sure, although recharges on a critical seems awfully gamey. Why shouldn't it be at-will? (It's fun being the infernal advocate!)
I like that. Evokes that heavy weapon is "swingy". Does it infringe on the barbarian savage recklessness?Another concept: You gain advantage with melee attacks. If both d20s would be hits, you do full damage. If only one hits, you do half damage.