22 cards where the text includes “partner” and the set is “bbd”

Blaring Captain (Battlebond #14)
Blaring Recruiter (Battlebond #13)
Chakram Retriever (Battlebond #15)
Chakram Slinger (Battlebond #16)
Gorm the Great (Battlebond #8)
Impetuous Protege (Battlebond #19)
Khorvath Brightflame (Battlebond #9)
Krav, the Unredeemed (Battlebond #4)
Ley Weaver (Battlebond #21)
Lore Weaver (Battlebond #22)
Okaun, Eye of Chaos (Battlebond #6)
Pir, Imaginative Rascal (Battlebond #11)
Proud Mentor (Battlebond #20)
Regna, the Redeemer (Battlebond #3)
Rowan Kenrith (Battlebond #2)
Soulblade Corrupter (Battlebond #17)
Soulblade Renewer (Battlebond #18)
Sylvia Brightspear (Battlebond #10)
Toothy, Imaginary Friend (Battlebond #12)
Virtus the Veiled (Battlebond #7)
Will Kenrith (Battlebond #1)
Zndrsplt, Eye of Wisdom (Battlebond #5)

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