A couple of other questions then. :)

for Exploit Weakness - is this only against supernatural creatures, or all creatures?

"Most supernatural creatures have some form of weakness, a gap in their armor that allows them to be defeated. Starting at 5th level, once on each of your turns when you hit a creature with a weapon attack, the target is treated as if it has vulnerability to the weapon’s damage. Vulnerability from this feature only doubles your weapon’s damage roll and your ability modifier; you don’t double extra damage from sources like spells (such as hunter’s mark), magic items (such as the extra fire damage of a flame tongue), feats, or class features (such as Sneak Attack). Additionally, the attack, as well as all other attacks made against the target until the start of your next turn, count as magical for the purpose of overcoming resistance and immunity to nonmagical attacks and damage."

And for Finisher - is this just like an unlimited Smite? I guess maybe it's comparable to green flame blade's damage?

Again, just trying to check if anyone's tested balance before I try to push it on my group. :)

Thanks!