Mana Storm

A mana storm is a powerful storm of arcane energy. They drift through the black and should be avoided by ships.

They are described from a distance as emitting thin lines of bright blue electricity that crack through the black. The material of the seam bends around them as the black seems to discolour and warp. Inside the storm itself, thick clouds of energy roil and glimpses into other planes can be seen where the material tears. The air is thick and humid, and glassy shards of silver hailstones rain down onto the decks of ships.