Can we do something about Diana's mana?
Her early game mana is really bad, either her mana costs are too high or her mana pool is too low.
Her early game mana is really bad, either her mana costs are too high or her mana pool is too low.
It's not bad at all, stop tossing Q on every CD, and pick up the second Blue buff. If you really can't handle the early game mana, start with a Crystalline Flask 
I only have mana problems in late game, when her Ultimate becomes really expensive. Just use Q if you know enemy cant dodge it or when they are ganking you and you wont have any problem.