The aion kinah game does have a system set up for players.
In term of Anion power leveling, there are only two ways to go about it, they are quest and grind. And questing is a great way for Anion power leveling, because you get guaranteed rewards after the quests are complete, such as some unique items which may worth some Anion Kina. The problem with questing comes in after you run into an area with many others working on the same quests. Many times you will run into other players who need the same mob as you do. The same quest items etc. and do not wish to share. The aion kinah game does have a system set up for players who wish to quest with other players, however many people would rather go solo (at least at the lower levels) due to wishing to complete their levels as fast as possible.