50 cards where the color identity ≤ GU and the card types include “adventure”

A-Emerald Dragon // A-Dissonant Wave (Alchemy Horizons: Baldur's Gate #A-210)
Albiorix, Goose Tyrant // Wild Goose Chase (Alchemy: Outlaws of Thunder Junction #19)
Animating Faerie // Bring to Life (Throne of Eldraine #38)
Aquatic Alchemist // Bubble Up (Wilds of Eldraine #40)
A-Young Blue Dragon // A-Sand Augury (Alchemy Horizons: Baldur's Gate #A-138)
Beanstalk Giant // Fertile Footsteps (Duskmourn: House of Horror Commander #172)
Beanstalk Wurm // Plant Beans (Wilds of Eldraine #161)
Beluna's Gatekeeper // Entry Denied (Wilds of Eldraine #43)
Bramble Familiar // Fetch Quest (Wilds of Eldraine #164)
Brazen Borrower // Petty Theft (Throne of Eldraine #39)
Brightcap Badger // Fungus Frolic (Bloomburrow Commander #28)
Colossal Badger // Dig Deep (Commander Legends: Battle for Baldur's Gate #223)
Curious Pair // Treats to Share (Throne of Eldraine #150)
Dread Linnorm // Scale Deflection (Commander Legends: Battle for Baldur's Gate #225)
Elusive Otter // Grove's Bounty (Wilds of Eldraine #225)
Emerald Dragon // Dissonant Wave (Commander Legends: Battle for Baldur's Gate #229)
Ettercap // Web Shot (Commander Legends: Battle for Baldur's Gate #231)
Fae of Wishes // Granted (Throne of Eldraine #44)
Ferocious Werefox // Guard Change (Wilds of Eldraine #170)
Flaxen Intruder // Welcome Home (Throne of Eldraine #155)
Galvanic Giant // Storm Reading (Wilds of Eldraine #52)
Garenbrig Carver // Shield's Might (Throne of Eldraine #156)
Hollow Scavenger // Bakery Raid (Wilds of Eldraine #174)
Horned Loch-Whale // Lagoon Breach (Wilds of Eldraine #53)
Hypnotic Sprite // Mesmeric Glare (Throne of Eldraine #49)
Illithid Harvester // Plant Tadpoles (Commander Legends: Battle for Baldur's Gate #76)
Intrepid Trufflesnout // Go Hog Wild (Wilds of Eldraine #320)
James, Wandering Dad // Follow Him (Fallout #31)
Karvanista, Loyal Lupari // Lupari Shield (Doctor Who #106)
Kellan, Inquisitive Prodigy // Tail the Suspect (Murders at Karlov Manor #212)
Lovestruck Beast // Heart's Desire (Commander Legends: Battle for Baldur's Gate #827)
Merfolk Secretkeeper // Venture Deeper (Throne of Eldraine #53)
Monster Manual // Zoological Study (Commander Legends: Battle for Baldur's Gate #242)
Moonshae Pixie // Pixie Dust (Commander Legends: Battle for Baldur's Gate #84)
Obyra's Attendants // Desperate Parry (Wilds of Eldraine #63)
Picklock Prankster // Free the Fae (Wilds of Eldraine #64)
Queen of Ice // Rage of Winter (Throne of Eldraine #61)
Rosethorn Acolyte // Seasonal Ritual (Throne of Eldraine #174)
Sapphire Dragon // Psionic Pulse (Commander Legends: Battle for Baldur's Gate #94)
Sea Hag // Aquatic Ingress (Commander Legends: Battle for Baldur's Gate #95)
Stormkeld Vanguard // Bear Down (Wilds of Eldraine #187)
Sword Coast Serpent // Capsizing Wave (Commander Legends: Battle for Baldur's Gate #99)
Tempest Hart // Scan the Clouds (Wilds of Eldraine #238)
Tlincalli Hunter // Retrieve Prey (Commander Legends: Battle for Baldur's Gate #682)
Tuinvale Treefolk // Oaken Boon (Throne of Eldraine #180)
Twice Upon a Time // Unlikely Meeting (Doctor Who #61)
Vantress Transmuter // Croaking Curse (Wilds of Eldraine #75)
Virtue of Knowledge // Vantress Visions (Wilds of Eldraine #76)
Virtue of Strength // Garenbrig Growth (Wilds of Eldraine #197)
Young Blue Dragon // Sand Augury (Commander Legends: Battle for Baldur's Gate #106)

Their mind whirled with grand plans, never thinking of what might happen if they got to the end of the list.