Dominic's regard giants slayer, what would you alter to make it more balanced

My 2 cents.

Have it work on current bonus hp. Ok so a simple example then. Jinx 1000 hp vs malphite 2000 hp. Jinx will deal 15% bonus damage untill malphite reaches 1500 hp from 1500-1050 hp this damage declines from 15% to 1,5% On 1000 hp and lower no bonus damage is dealth.

So as long as someone has more current health than your maximum health you deal bonus damage. This way the damage will affect tanks and juggernaughts the most fighters a little less and mages and squishies not so much.

And that is how i would balance the bonus damage you can come up with your own ideas and maybe Rito will take notice and pick a good one to balance the ability.