It can only be blocked by legendary creatures, so its more likely to trade with a commander or another big, scary threat
Plus, since they're all only one color, it'll hopefully lead to straight forward gameplay, since you won't have to worry about mana fixing

Advanced Search Sets Random Syntax Release date: 2024-10-14 Sire of Seven Deaths Arahbo, the First Fang Armasaur Guide Cat Collector Celestial Armor Claws Out Crystal Barricade Dauntless Veteran Dazzling Angel Divine Resilience Exemplar of Light Felidar Savior Fleeting Flight Guarded Heir Hare Apparent Helpful Hunter Herald of Eternal Dawn Inspiring Paladin Joust Through Luminous Rebuke Prideful Parent Raise the Past Skyknight Squire Squad Rallier Sun-Blessed Healer Twinblade Blessing Valkyrie's Call Vanguard Seraph Arcane Epiphany Archmage of Runes Bigfin Bouncer Cephalid Inkmage Clinquant Skymage Curator of Destinies Drake Hatcher Elementalist Adept Erudite Wizard Faebloom Trick Grappling Kraken High Fae Trickster Homunculus Horde Icewind Elemental Inspiration from Beyond Kaito, Cunning Infiltrator Kiora, the Rising Tide Lunar Insight Mischievous Mystic Refute Rune-Sealed Wall Skyship Buccaneer Sphinx of Forgotten Lore Strix Lookout Uncharted Voyage Abyssal Harvester Arbiter of Woe Billowing Shriekmass Blasphemous Edict Bloodthirsty Conqueror Crypt Feaster Gutless Plunderer High-Society Hunter Hungry Ghoul Infernal Vessel Infestation Sage Midnight Snack Nine-Lives Familiar Revenge of the Rats Sanguine Syphoner Seeker's Folly Soul-Shackled Zombie Stab Tinybones, Bauble Burglar

Any land that's a Swamp has the ability ": Add." Nothing else changes about those lands, including their names, other subtypes, other abilities, and whether they're legendary, basic, or snow
I considered Obeka, Brute Chronologist, but she just didnt quite fit the mood of Doctor Who
Library ninjutsu ability can be activated only while you're searching your own library and only if you control at least one unblocked attacker