Magegray is one of the most difficult solo bosses of DreamScape. This boss has a lot of hitpoints, along with very common prayer drains, as well as a powerful special attack.
To defeat the Wizard Grayzag, the use of a Fast-Hitting weapon is NEEDED along with many prayers, or restore potions. Prayer potions are needed because your prayer will be drained constantly, and you will need soul split to survive. It is recommended to drink sips of the prayer potions once you have a very low prayer and when the wizard is still yet about to prepare his new hit. It is recommended to use American Torva + when fighting magegray and a build can be found in the image below.