Bounty hunter is really weird, effectively. In higher elo it's not taken much. Any jungler can get earlier benefits from Oppressor because red buff applies cc... It requires some time into the game to collect 3 different champion kills.... CC is almost always present in kills because people know what they're doing...
It's not terrible though... it fits the mold of the carry, carries are SUPPOSED to get kills...
But maybe bounty hunter should get a free 1% champion dmg..? Or would that mean anything other than consolation? The whole tree is made of damage.
If bounty hunter's scaling was stronger it'd just be dumb. But it's weak enough compared to oppressor that it's never used. It's not like oppressor is op though..
Bounty hunter is totally hopeless on 3s too.
When I first saw Bounty Hunter I was like "man this tree sucks, lacks variation, and this mastery (bounty hunter) is hella dumb"
If it was me I'd make it 2% per unique kill, capped at 6%. Maybe bring oppressor up to 3% for nice even numbers.
I guess 6% is A LOT tho.