Has anyone any idea of what the specific mana cost and extra damage is for thos spell at level 1 to 4? Currently I've it at Disciple but at 110 mana I think I can manage 3 attacks before all mana is gone and according to the description it says it increases the magic attacks and decreases the mana cost so I can see this becoming valuable later on when magic attacks may be more needed and money isn't an issue for potions altough it sort of isn't already.

I'm a level 23 Thief and in the beginning of Act 2. Should I raise it to Journeyman or even Master?