These spells are designed mainly using the artwork from the Warcraft 3 game. All credit goes to the hard work done by the art team at www.blizzard.com. Some of the spells were created myself, however, to stay in the theme of WC3 the new artwork was derived from the original artwork. I also used some of Ghesta's well designed artwork.
Great job on those spells Ghesta. And again there is no since reinventing the wheel on work that is already awesome to begin with.