14 cards where the text includes “constellation” and the color identity ≤ BW

Agent of Erebos (Journey into Nyx #59)
Archon of Sun's Grace (Commander Masters #814)
Boon of the Spirit Realm (Commander Masters #720)
Captivating Unicorn (Theros Beyond Death #6)
Daxos's Torment (Commander 2015 #18)
Doomwake Giant (Commander Masters #865)
Dreadbringer Lampads (Commander 2015 #122)
Favored of Iroas (Theros Beyond Death #15)
Grim Guardian (Journey into Nyx #73)
Harvestguard Alseids (Journey into Nyx #13)
Pious Wayfarer (Theros Beyond Death #32)
Skybind (Journey into Nyx #25)
Thoughtrender Lamia (Journey into Nyx #85)
Underworld Coinsmith (Commander 2015 #237)

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