Suggestions

[Penguin]

Buff the mana stat! As it stands with the low mana costs of most abilities and the pitiful amounts of DR it gives, mana is kind of a useless stat compared to agility. 9/10 people go agility over mana with not a single point of investment, mana is a dead stat.

Agility has:
Flee/pursue - A life safer to avoid bad confrontations altogether.
Crits - A huge DPS increase!
Spell CDR - Spam your moves more for better damage!

Mana has:
Mana Cap - Unless you're some really heavy mana consuming build, this isn't much of an issue. (Do people even OOM anymore?)
DR - The DR is so minimal. Compare the damage reduction to the damage gained from agility and it's just not good at all.

People don't like DR and if mana costs were increased, everyone would flip. Maybe give mana a new additional effect?

Mana also reduce the time that a debuff affects you! But I think the mana stats could have some love.