Come on... Mana accelerator is the skill that makes the warrior worth playing!
All you need to do is get your warrior to 25 mana (not that difficult, the shrines alone will do) and upgrade the mana accelerator fully - then go rage crazy. With that little dragon skill you will turn 25 rage into 25 mana each round. That effectively transforms your rage pool into mana pool. And you're saying THAT is useless?
In my opinion, it is the Mana Accelerator skill that makes a well-built warrior so wickedly powerful and so imbalanced compared to the other characters. Warriors can easily transform rage into mana and regain the lost rage (25 points) in just one round without destroying a stack. The Mage cannot do that mana-wise, unless she destroys a stack or two. All of that means only one thing - paladin phantoms every turn. You know the rest
