Mana point
A character's mana points are determined by his or her mana statistic(s) and Harness Power skill training.
Mana Stats
Each profession uses one or two statistics to determine its base mana points. The bonus of the statistic, not the value of the statistic itself, is used.
Mana Point Calculation
A character's maximum mana points are equal to the following:
- Max MP = trunc[(StatBonus1 + StatBonus2) ÷ 4] + Harness Power Bonus
where the Harness Power Bonus is equal to 3 × Ranks for ranks less than or equal to the character's level, and 1 × Ranks for ranks beyond the character's level. If the character has only one mana stat, use it for both StatBonus1 and StatBonus2.
Example Calculation
Versa is a level 10 Elf Empath with a 100 in Influence and a 98 in Wisdom; this amounts to bonuses of +35 in Influence and +24 in Wisdom. Versa has 15 ranks of Harness Power. Versa's maximum mana points are:
trunc[(35+24) ÷ 4] + 3 × (10 ranks) + 1 × (5 ranks) = 14 + 30 + 5 = 49 MP.
Reference
Official Magic Guide http://www.play.net/gs4/info/magic-guide.asp#mana