Your deck of cards represents all the weapons in your arsenal

Ancient Silver Dragon April, Reporter of the Weird Arm-Mounted Anchor Azra Oddsmaker Battle Angels of Tyr Bebop, Skull & Crossbones Book Devourer Captain Howler, Sea Scourge Cold-Eyed Selkie Curie, Emergent Intelligence Damocles Base, Sword of Kang Diviner Spirit Fear of Failed Tests Foot Chopper Glenn, the Voice of Calm Glint-Eye Nephilim Hunter's Insight Hunter's Prowess Impaler Shrike Iymrith, Desert Doom Jolrael, Voice of Zhalfir Kain, Traitorous Dragoon Korvold, Gleeful Glutton Mask of Memory Mask of the Schemer Merfolk Windrobber Mighty Servant of Leuk-o Nael, Avizoa Aeronaut Neheb, Dreadhorde Champion Nimble Brigand Ogre-Head Helm Peema Trailblazer Professor Hulk Psychic Frog Robe of the Archmagi Sauron, the Dark Lord Sergeant John Benton Shadow, Mysterious Assassin Shoreline Looter Starwinder Sturmgeist Subterfuge Summon: Primal Odin Surrakar Spellblade The Gitrog, Ravenous Ride The Pride of Hull Clade Trash the Town Xyris, the Writhing Storm Zombie Cheese Magician

Considering some of the best creatures in the game have that type, this is an incredibly valuable ability
But not so with Phyrexian
5 Deadbeat Attendant (Galaxy Foil) - $12.32 With Attractions being such a new mechanic, and one that will likely be limited exclusively to Unfinity, every creature that can open an Attraction has both been evaluated with high levels of scrutiny and in high demand among players