Me and Zook just tested this, while not in a group.
The creep I am killing gives me around 467 XP.
If I tag the target as my kill, then Zook makes just one attack on it before I have killed it, I then receive only 131 XP, Zook receives no XP.
Imagine how difficult it will be to get the full XP from a creep.... when there are hundreds of players running around hitting your tagged targets!
I am not sure if this is a bug, but it may need looking at ![]()

