When your reincarnation reach lvl 60 you will be allowed to choose certain sharing skill. Here is the List of very useful reincarnation skills:
Strike of Justice Description :Charges you to your target and knock the target down.Very usefull in PvP.
Deadly Rush Description :Instantly flashes you behind your target and deals a certain damage.Very usefull in PvP.
Telekinetic Pull Description: Gathers enemies from a 10 yard range, knock them down with a 30% chance to stun.Very usefull in PvE (also in PvP).
Natural Balance Description :Equally your party members health points.Very Usefull in PvE (especially in deeper layers of astral).Can help in PvP aswell.