[GAMEPLAY] Gromp doesn't die to jungler items passive magic damage.

When attacking Gromp as jarvan IV when you get him to below 30 hp and leave for the passive dot to kill him it will not reduce him below 1 hp

Steps to Repeat.

1. Play a custom game as Jarvan
2. Buy Hunter's Machete
3. Smack him til he gets to < 30 hp. (this works first try with my j4 rune page consisting of attack speed marks and armor pen quints plus smiting him)
4. Walk away and observe he doesn't die. (He should be at 1 hp if done correctly.)

Haven't tried this with other champions but i'd imagine it's easily repeatable. Also both sides of the map produce the same bug.