"Magic isn't an exact science, and magic relating to the planes is even more risky. Inaccurate directions, an error in the rituals, interference by planar entities, or just sheer bad luck - the number of things that can go wrong is nearly endless. And when things do go wrong, those lost in the void don't always have the good luck to die. The least fortunate come back as creatures we have termed Eidolons - vaguely humanoid creatures wrought from some otherworldly stone and bursting with magical energy, which cluster in hordes around tears into mortal worlds. They can't get through, fortunately, so they love it when an ill-prepared mage ventures into world he doesn't understand, only to end up trapped with them in the void between worlds. Be careful when looking into other realms for, rest assured, the other worlds are looking back." -Excerpt from a lecture from an unnamed scholar. Instinct: To grab at the life it once had

• Covet the lifeforce of mortals
• Unleash raw magical energy
• Gather round portals between worlds