Fully level your group skills, specially the first five. They do lots of power gains. Group Skills > Strengthen because strengthening costs a lot but gives you only few. Do it after you have fully leveled your group skills. How is your character items? the one you get at the Team instance? Find something purple that has an additional stats of 4. Also, make all your magatamas level 3 or higher. Level 72 with 17k power is pretty weak bro.
Your refines should be level 4 or higher.
This post was last edited by Sanamabits at 2016-9-23 16:14