Essence of theArchmage

You gain access to D&D arcane magic on a level equal to Elminster, Iggwilv, or Mordenkainen. Within your grasp are spells to disintegrate foes where they stand, call down a rain of fire from the sky, teleport across the planet, step between dimensions, raise islands out of the sea, create whole new species, summon godlike spirits, and more. With time, you could develop your own spells at similar degrees of power.

You have created your own private dimension that can be any size from a mansion up to a small country. Its particular contents and physical laws are up to you at any given moment. Only you, and those with your permission, may enter and leave this dimension freely and at will.

You never suffer the penalties, frailties, or mortality of old age. Your psyche is immune to the negative effects of both eternal life and eldritch knowledge.

You have an extensive grasp of the scale and landscape of grand cosmological politics. Considering the big picture comes naturally, but you never become so detached as to lose the little things.

You have numerous personal connections to extremely powerful beings across the multiverse, such as demon princes or deities of magic. The nature and history of such connections are up to you.