Celtic Heroes

so when update came i was hoping i could lvl my mage instead of my rogue but i just couldnt seem to do anything i ran out of energy quick wich with no energy it taks forever for the mob to die.Then i tried and energy shiled boost cloak build but energy shiled at 25/25 take waaaaay to much energy mine took 1010 energy and my mage was all foc so once i used it took like 1/3 of all my energy.I tryed in pvp doesnt work as soon as shiled is expired or dmg all dealt to it then i died with 1 hit so i tryed shiled estimating the dmg that was being done there goes 2/3 of my energy and og course i had to be asting inbetween to so i was practicly without energy and it takes forever to regain. Any help on this stats or skills i should use and how many points in each.?