47 cards where the colors is W and the set is “m21”

Adherent of Hope (Core Set 2021 #321)
Alpine Watchdog (Core Set 2021 #2)
Angelic Ascension (Core Set 2021 #3)
Anointed Chorister (Core Set 2021 #4)
Aven Gagglemaster (Core Set 2021 #5)
Baneslayer Angel (Core Set 2021 #6)
Basri, Devoted Paladin (Core Set 2021 #320)
Basri Ket (Core Set 2021 #7)
Basri's Acolyte (Core Set 2021 #8)
Basri's Aegis (Core Set 2021 #322)
Basri's Lieutenant (Core Set 2021 #9)
Basri's Solidarity (Core Set 2021 #10)
Celestial Enforcer (Core Set 2021 #11)
Concordia Pegasus (Core Set 2021 #12)
Containment Priest (Core Set 2021 #13)
Daybreak Charger (Core Set 2021 #14)
Defiant Strike (Core Set 2021 #15)
Dub (Core Set 2021 #16)
Faith's Fetters (Core Set 2021 #17)
Falconer Adept (Core Set 2021 #18)
Feat of Resistance (Core Set 2021 #19)
Gale Swooper (Core Set 2021 #20)
Glorious Anthem (Core Set 2021 #21)
Griffin Aerie (Core Set 2021 #22)
Idol of Endurance (Core Set 2021 #23)
Legion's Judgment (Core Set 2021 #24)
Light of Promise (Core Set 2021 #25)
Makeshift Battalion (Core Set 2021 #26)
Mangara, the Diplomat (Core Set 2021 #27)
Nine Lives (Core Set 2021 #28)
Pack Leader (Core Set 2021 #29)
Rambunctious Mutt (Core Set 2021 #30)
Revitalize (Core Set 2021 #31)
Runed Halo (Core Set 2021 #32)
Sanctum of Tranquil Light (Core Set 2021 #33)
Seasoned Hallowblade (Core Set 2021 #34)
Secure the Scene (Core Set 2021 #35)
Selfless Savior (Core Set 2021 #36)
Siege Striker (Core Set 2021 #37)
Sigiled Contender (Core Set 2021 #323)
Speaker of the Heavens (Core Set 2021 #38)
Staunch Shieldmate (Core Set 2021 #39)
Swift Response (Core Set 2021 #40)
Tempered Veteran (Core Set 2021 #41)
Valorous Steed (Core Set 2021 #42)
Vryn Wingmare (Core Set 2021 #43)
Warded Battlements (Core Set 2021 #44)

The message was clear to Sorin—time to search for something else.