27 cards where the color identity is BGU and the card types include “legendary”

Archelos, Lagoon Mystic (Dominaria United Commander #140)
Brokkos, Apex of Forever (Ikoria: Lair of Behemoths #179)
Damia, Sage of Stone (Commander Anthology Volume II #2)
Felix Five-Boots (Outlaws of Thunder Junction Commander #6)
Gonti, Canny Acquisitor (Outlaws of Thunder Junction Commander #1)
Henry Wu, InGen Geneticist (Jurassic World Collection #12)
Indominus Rex, Alpha (Jurassic World Collection #14)
Jorn, God of Winter // Kaldring, the Rimestaff (Kaldheim #179)
Jorn, God of Winter // Kaldring, the Rimestaff (Kaldheim #179)
Kadena, Slinking Sorcerer (Commander 2019 #45)
Leovold, Emissary of Trest (Ultimate Masters #202)
Muldrotha, the Gravetide (Double Masters 2022 #258)
Nashi, Moon's Legacy (March of the Machine: The Aftermath #39)
Nine-Fingers Keene (Commander Legends: Battle for Baldur's Gate #289)
Otrimi, the Ever-Playful (Commander 2020 #12)
Rayami, First of the Fallen (Commander 2019 #48)
Sidisi, Brood Tyrant (Khans of Tarkir #199y)
Tasigur, the Golden Fang (Ultimate Masters #117)
Tatsunari, Toad Rider (Kamigawa: Neon Dynasty #123)
The Master, Transcendent (Fallout #6)
The Mimeoplasm (Outlaws of Thunder Junction Commander #234)
The Wise Mothman (Fallout #4)
Volrath, the Shapestealer (Commander 2019 #51)
Vorosh, the Hunter (Commander Anthology Volume II #3)
Xavier Sal, Infested Captain (The Lost Caverns of Ixalan Commander #14)
Yarok, the Desecrated (Core Set 2020 #220)
Zaxara, the Exemplary (Dominaria United Commander #176)
Zimone and Dina (March of the Machine #257)

In the blink of an eye, they strode from deep snow to the end of this search.