They came from the Stars

Star Elementals try to attract magnetized heroes. They use Attract even when this results in them taking damage from colliding with the heroes pulled. When there are no magnetized heroes present, they engage in melee. If a Star Lord is present, they are capable of advanced combat tactics like magnetizing and attracting key targets or using their fly ability to pull heroes into the air or over cliffs.

Star Lords are cunning Abberations using lightning and elementals made from the remnants of their home planet to fight. The use their mobility and covern to keep out of danger if possible. Striking after their elemental servants have magnetized heroes making them vulnerable to the Star Lords attack.