They are the five major gods with major functions, one for each color
Of course, this is a modern digital card game, so there are ways for you to open packs quicker and that typically means spending actual money
Im expecting a LOT of these cards to be out there, given the chase for serialized cards and the way players go after lotto tickets like this
Otherwise, do nothing
Astrologian's Planisphere Atlantean Cavalry Baxter, Fly in the Ointment Blue Marvel, Adam Brashear Chasm Skulker Clinquant Skymage Construct a Cosmic Cube Erudite Wizard Faerie Vandal Gurgling Anointer Hoofprints of the Stag Iron Man, Armored Avenger Jace's Projection Jace, Arcane Strategist Kang, Temporal Tyrant Kianne, Corrupted Memory Kid Loki Knights of Dol Amroth Knowledge Seeker Lady Octopus, Inspired Inventor Lat-Nam Adept Lorescale Coatl Lyla, Holographic Assistant Madame Masque Merata, Neuron Hacker Nadir Kraken Ominous Seas Oneirophage Roxxon Brutes Shabraz, the Skyshark Shang-Chi and the Ten Rings Stalwarts of Osgiliath Stark's Ingenuity Teferi's Talent Teferi, Temporal Pilgrim The Astonishing Ant-Man The Watcher in the Water Thopter Mechanic Toothy, Imaginary Friend Vodalian Wave-Knight Wizard Class Wolfbat
Of course, you could just cheese the last ability