36 cards where the text includes “domain” and the color identity ≤ GU

A-Briar Hydra (Dominaria United #A-286)
A-Llanowar Greenwidow (Dominaria United #A-169)
Allied Strategies (Duel Decks: Phyrexia vs. the Coalition #63)
A-Nael, Avizoa Aeronaut (Dominaria United #A-207)
A-Sunbathing Rootwalla (Dominaria United #A-181)
Briar Hydra (Dominaria United #286)
Collective Restraint (Invasion #49)
Draco (Planeshift #131)
Evasive Action (Duel Decks: Phyrexia vs. the Coalition #50)
Gaea's Might (Dominaria United #164)
Herd Migration (Dominaria United #165)
Jodah's Codex (Dominaria United #233)
Llanowar Greenwidow (Dominaria United #169)
Magnigoth Treefolk (Planeshift #82)
Manaforce Mace (Conflux #139)
Matca Rioters (Modern Masters 2015 #148)
Might of Alara (Conflux #85)
Nael, Avizoa Aeronaut (Dominaria United #207)
Nishoba Brawler (Dominaria United #174)
Power Armor (Duel Decks: Phyrexia vs. the Coalition #62)
Prismatic Geoscope (Commander 2016 #55)
Scion of Draco (Modern Horizons 2 #234)
Skywriter Djinn (Alchemy: Dominaria #5)
Slimefoot's Survey (Dominaria United #178)
Sphinx of Clear Skies (Dominaria United #67)
Spore Burst (Conflux #93)
Stratadon (Planeshift #135)
Sunbathing Rootwalla (Dominaria United #181)
Territorial Maro (Dominaria United #184)
The Weatherseed Treaty (Dominaria United #188)
Tromp the Domains (Time Spiral Remastered #242)
Voda Sea Scavenger (Dominaria United #74)
Wandering Stream (Invasion #224)
Wandering Treefolk (Alchemy: Dominaria #19)
Worldly Counsel (Conflux #39)
Yavimaya Sojourner (Dominaria United #191)

The arc of my blade has carved a path of light to the end of these results.