Mana
Mana is the form of energy which magic is comprised of, and is measured in mana points (MPs). Casting a spell requires the expenditure of a certain amount of mana, generally equal to the level of the spell being cast. For example, a level one (1) spell would cost the caster one (1) mana. Mana regenerates naturally over time, based on a variety of factors. A character's base capacity for mana is based upon their level zero statistics (enter the INFO START command to view).
To increase a character's maximum mana capacity, training in Harness Power is required. Every rank of harness power up to and including the character's level provides 3 mana per rank. For example, a level 25 character with 25 ranks of harness power will have 75 mana just from his/her training in harness power. For every rank past the character's level only 1 mana is added. An example would be the same level 25 character above, but with 26 ranks of harness power, would have 76 mana from his training.