Judge to be clear we are to make a card(s) that uses 2 or more named base cards or exactly 2 named base cards?
Also might be useful for other people here is the full lists of official cards that reference Base Cards
Names 6 Base cards
Alliance
Names 4 Base cards
Castles
Names 3 Base cards
Explorer, Palace
Hexes(Bad Omens, Envious, Greed, Locusts, Plague) - I don't want to count this but the deck of Hexes reference 3 base cards, so all Doom cards reference at least 3.
Names 2 Base cards
Apothecary, Aqueduct, Augurs, Bandit, Bandit Fort, Beggar, Corsair, Count, Enclave, Fool's Gold, Governor, Hunting Grounds, Ill-Gotten Gains, Mountebank, Noble Brigand, Quest, Soothsayer, Tournament(Prizes) Transmute, Treasure Trove
Boons (The Mountain's Gift + The Sea's Gift) - I don't want to count this but the deck of Boons reference 2 base cards, so all Fate cards reference at least 2.
Names 1 Base card
Alchemist, Amulet, Annex, Banquet, Barbarian, Baron, Black Cat, Blockade, Bonfire, Bureaucrat, Cache, Camel Train, Cauldron, Charlatan, Circle of Witches, Commerce, Conquest, Coppersmith, Courtier, Counting House, Coven, Cursed Gold, Cutpurse, Defiled Shrine, Delve, Desperation, Devil's Workshop, Dismantle, Distant Shore, Dominate, Ducat, Duchess, Duke, Embargo, Embassy, Encampment, Familiar, Feodum, Fortune, Fortune Teller, Fountain, Giant, Grand Market, Groom, Hideout, Hoard, Idol, Inheritance, Jack of All Trades, Jester, Legionary, Leprechaun, Lucky Coin, Market Square, Merchant, Miser, Monastery, Moneylender, Mountain Pass, Old Witch, Pasture, Raid, Reap, Replace, Rocks, Royal Blacksmith, Sauna, Scrap, Sea Hag, Sea Witch, Settlers, Silos, Skulk, Sorcerer, Squire, Swamp Hag, Territory, Torturer, Town Crier, Trade, Trader, Trading Post, Treasure Chest, Treasure Hunter, Treasure Map, Triumph, Tunnel, Vagrant, Way of the Camel, Way of the Worm, Wayfarer, Weaver, Wedding, Wild Hunt, Windfall, Witch, Witch's Hut, Young Witch