Not that I'm aware of....
But there is this -
The Mana Cost of each special move can be reduced if the warrior's skills are high enough. Add up the skill points for Swords, Mace Fighting, Fencing, Archery, Parrying, Lumberjacking, Stealth, Poisoning, Bushido and Ninjitsu. If the total lies between 200 and 299, subtract 5 from the Mana Cost. If the total is 300 or more, subtract 10 from the Mana Cost. - Taken from -
Special Moves Page
Q