Lets say you just watched a Vampire movie, and now you want your deck to be full of Vampires and bats
But most historians agree they suddenly showed up by the end of the 1300s, possibly introduced by Crusade-era soldiers

WHITE | BLUE | RED | GREEN | MULTICOLORED ARTIFACT | LAND | ALL CARDS WHITE Aerial Surveyor Drumbellower Ironsoul Enforcer Organic Extinction Release to Memory Swift Reconfiguration Aeronaut Admiral Armed and Armored Cataclysmic Gearhulk Crush Contraband Dispatch Generous Gift Indomitable Archangel Myrsmith Parhelion II Sram, Senior Edificer Swords to Plowshares Teshar, Ancestor's Apostle BLUE Access Denied Cyberdrive Awakener Imposter Mech Kappa Cannoneer Katsumasa, the Animator Research Thief Universal Surveillance Emry, Lurker of the Loch Etherium Sculptor Jace, Architect of Thought Master of Etherium Reality Shift Riddlesmith Sai, Master Thopterist Thopter Spy Network Thoughtcast Vedalken Engineer Whirler Rogue RED Akki Battle Squad Collision of Realms Kami of Celebration Komainu Battle Armor Smoke Spirits' Aid Unquenchable Fury Agitator Ant Chain Reaction Chaos Warp Elemental Mastery Goblin Razerunners Krenko, Tin Street Kingpin Ox of Agonas Shifting Shadow Starstorm Taurean Mauler GREEN Ascendant Acolyte Concord with the Kami Kosei, Penitent Warlord One with the Kami Rampant Rejuvenator Silkguard Tanuki Transplanter Acidic Slime Bear Umbra Beast Within Champion of Lambholt Fertilid Forgotten Ancient Genesis Hydra Hunter's Insight Kodama's Reach Loyal Guardian Ordeal of Nylea Primeval Protector Rampant Growth Rishkar, Peema Renegade Rishkar's Expertise Sakura-Tribe Elder Shamanic Revelation Snake Umbra Soul's Majesty Spearbreaker Behemoth Vastwood Surge Whiptongue Hydra MULTICOLORED Chishiro, the Shattered Blade Kotori, Pilot Prodigy Kaima, the Fractured Calm Shorikai, Genesis Engine Arcanist's Owl Dance of the Manse Decimate Grumgully, the Generous Hanna, Ship's Navigator Mage Slayer Raff Capashen, Ship's Mage Rhythm of the Wild Ulasht, the Hate Seed ARTIFACT Arcane Signet Azorius Signet Blackblade Reforged Bonehoard Colossal Plow Cultivator's Caravan Fellwar Stone Fireshrieker Foundry Inspector Gold Myr Mirage Mirror Peacewalker Colossus Raiders' Karve Shimmer Myr Silver Myr Skysovereign, Consul Flagship Smuggler's Copter Sol Ring Solemn Simulacrum Swiftfoot Boots Sword of Vengeance Weatherlight LAND Cinder Glade Command Tower Exotic Orchard Game Trail Gruul Turf Mossfire Valley Opal Palace Oran-Rief, the Vastwood Port Town Prairie Stream Raging Ravine Skycloud Expanse Spire of Industry Temple of Abandon Temple of Enlightenment WHITE | BLUE | RED | GREEN | MULTICOLORED ARTIFACT | LAND | ALL CARDS

Given how many cards it takes to pay for him to enter play in the first place, its fair to say that this is likely to give you a lot of resources to continue playing cards with
Disney Lorcana always continues to reveal cards in the time leading up to set releases, so more should keep trickling in ahead of the August launch of Shimmering Skies , including the rest of the Legendaries and the elusive Disney Lorcana Enchanted cards