He had one of the Magic Swords of Great Power. His desires were for power and wealth. His wish for these ends lead him to pursue the amulets of the Masters of Scorpion Swamp. However, he was foiled in this by a hero, who killed Grimslade. Upon dying Grimslade became a Demon which was also killed by the hero, and subsequently his soul was claimed by the Evil lords of The Pit.
In 270AC, Ishtra's leading wizards began researching two areas of interest: the magical creation of new creatures (which every sorcerer since the fall of Atlantis had sought to master) and elemental control. Grimslade was one such individual.