The Lost Sanctuary Structure Deck puts the power of the planets themselves in your hands. Now you can command The Agents, a collection of out-of-this-world monsters based on the planets of our Solar System! Led by Master Hyperion, the personification of the Sun’s fury, your Agents will wage war from their fortress amidst the heavens.

The Agents’ celestial stronghold is The Sanctuary in the Sky. When Agents battle while their Sanctuary is active, their special abilities get an upgrade.