the difference between weapon power and crystal power is that weapon power usually rely on basic attacks and crystal power usually rely on crystal power.
That however does not meen that all ability's rely on crystal power and all auto attacks rely on weapon power.
here some help when playing the roles
Sniper: If you want do more damage buy weapon power. if you want do medium damage but have some decent utility buy crystal power
Mage: buy crystal power
brusier/fighter: buy weapon...
Posted: Apr 14, 2017