KILL STEALING

I noticed that before you need to get rare items you need to get a last hit from boss. But i saw it unfair especially to other players who are not strong. Like for example is my self I go to the boss starting hitting about 10mins and damaging it to 5% remaining HP and there it goes many players will come especially the strong one will KILL STEAL the boss. So maybe i suggest that if someone hits the boss to 20% or lower the item will be drop will goes to the person who got more damage.

Admin ? What do you think?