Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. Open an Attraction. (Put the top card of your Attraction deck onto the battlefield.)
The Astrotorium adds new attractions almost as fast as Captain Nebula can crash them into asteroids.
![Coming Attraction [Unfinity]](http://www.cardmerchanttakapuna.co.nz/cdn/shop/files/8d2a99c4-4e78-5ae9-9f47-c1842e837c9a.jpg?v=1715903968&width=1445)