An Idea: Still missing a name

THE BOUNTY HUNTER

Passive: Everytime Bounty hunter kills an enemy champion with a bounty, he gains a stack of Bounty based on the bounty level (Killing spree=1 legendary=5) He also gains Full bounty for all kills he gets and still shares gold with his team (Ex. Jhin gets a kill an gives 50G to everyone, Bounty hunter gets a kill he gets 250G and gives 50G to everyone else)

Ability 1: Bounty Hunter's next auto attack deals 50/75/100/125/150 Damage (Based on rank) and has Bonus effects of the target has a bounty. Grade 1 bounty (Killing spree) 30% slow for 1.25 Seconds. Grade 2 bounty 50% Bonus damage (From 50 to 75 rank 1). Grade 3 bounty 50% slow for 2 seconds. Grade 4 bounty Stun for 1.5 seconds. Grade 5 stun for 1.5 seconds+ 100% extra damage.

ABILITY 2: Bounty hunter cashes in his Passive stacks to gain 100/110/120/130/150 Gold per stack

ABILITY 3: Bounty hunter gains 20%/25%/30%/35%/50% movement speed for 3 seconds

ULTIMATE: Bounty Hunter drops his Gun and grabs 2 combat knifes, Gains 50%/75%/100% attack speed and 20% Attack damage for 5 seconds

Bounty hunter was designed to have low base damages but ridicules Buffs/Bonuses. He is a high risk, Very high reward Marksman build for the bot lane. And example combo could be R for the AD and AS, the Q on a high bounty target for a massive amount of burst an sustained Melee damage.

I came up with this concept because I feel like the riot bounty system is a little lack-luster.

TL;DR a champion that doesn't hit very hard unless you are hitting a high bounty target.