Jinx does about half damage with auto attacks to the big krug

Auto attacks on the big krug do half damage, you can have an infinity edge and a runaans hurrican and only crit for 200 damage at a time.

To reproduce the bug all you have to do is auto attack the krug, and the bug always occurs everytime you do so. Do note that I believe on hit effects hit the krug for the full amount, and the big krug's adds are not affected by the big krug using essentially alistair ult. Krug only has 20 armour so it's quite the bug. One more thing to add, is that I usually use star guardian jinx but I quickly tested slayer jinx and the damage reduction is still there. This bug's not that high a priority, no one leashes krugs and jinx doesn't jungle, but if it can happen to jinx maybe it could happen to other champions.

As a note: if you want to kill the big krug faster try using rockets on the smaller krug next to it, this will make the big krug take full auto damage from the explosion.