Enemy Kill Assist
Add an EK support that could be counted towards total EKs. Currently there are alot of "support" builds but they rarely are able to land an EK.
Add some sort of system to get an assist if you do any sort of supportive damage/para/etc to the enemy that dies or any supportive spells to the person that does the killing blow to the enemy such as haste etc.
This would add more of an incentive to players to work together instead of just blasting everything at the enemy in hopes of landing an EK and also support builds will feel like they are getting something from PVP also
Or just separate the assist from actual EKs and give some different coloured dye for i.e 5000 assists