User blog comment:Deathwish Invictus/Planet Sheet (Astral)/@comment-26210042-20141014012428/@comment-25417020-20141014195330

Okay, to sum things up

Only magic able to exist on Astral:

Elemental Magic. (Gray would be able to use this power, but he would not be as powerful as the grand mage, and on equal level to the most powerful mage of each magic clan (Fire,Time,etc...)