15 cards where the set is “bok” and the colors is W and the collector number > 15

Moonlit Strider (Betrayers of Kamigawa #16)
Opal-Eye, Konda's Yojimbo (Betrayers of Kamigawa #17)
Oyobi, Who Split the Heavens (Betrayers of Kamigawa #18)
Patron of the Kitsune (Betrayers of Kamigawa #19)
Scour (Betrayers of Kamigawa #20)
Shining Shoal (Betrayers of Kamigawa #21)
Silverstorm Samurai (Betrayers of Kamigawa #22)
Split-Tail Miko (Betrayers of Kamigawa #23)
Takeno's Cavalry (Betrayers of Kamigawa #24)
Tallowisp (Betrayers of Kamigawa #25)
Terashi's Grasp (Betrayers of Kamigawa #26)
Terashi's Verdict (Betrayers of Kamigawa #27)
Ward of Piety (Betrayers of Kamigawa #28)
Waxmane Baku (Betrayers of Kamigawa #29)
Yomiji, Who Bars the Way (Betrayers of Kamigawa #30)

Their mind whirled with grand plans, never thinking of what might happen if they got to the end of the list.