27 cards where the set is “brc” and (the collector number >= 41 and the collector number <= 67)

Disciple of Caelus Nin (The Brothers' War Commander #41)
Tawnos, Solemn Survivor (The Brothers' War Commander #42)
Sardian Avenger (The Brothers' War Commander #43)
Rootpath Purifier (The Brothers' War Commander #44)
Titania, Nature's Force (The Brothers' War Commander #45)
The Archimandrite (The Brothers' War Commander #46)
Ashnod the Uncaring (The Brothers' War Commander #47)
Mishra, Eminent One (The Brothers' War Commander #48)
Urza, Chief Artificer (The Brothers' War Commander #49)
Staff of Titania (The Brothers' War Commander #50)
Urza's Workshop (The Brothers' War Commander #51)
Sanwell, Avenger Ace (The Brothers' War Commander #52)
Scholar of New Horizons (The Brothers' War Commander #53)
Glint Raker (The Brothers' War Commander #54)
March of Progress (The Brothers' War Commander #55)
Terisiare's Devastation (The Brothers' War Commander #56)
Wire Surgeons (The Brothers' War Commander #57)
Wreck Hunter (The Brothers' War Commander #58)
Blast-Furnace Hellkite (The Brothers' War Commander #59)
Farid, Enterprising Salvager (The Brothers' War Commander #60)
Hexavus (The Brothers' War Commander #61)
Kayla's Music Box (The Brothers' War Commander #62)
Machine God's Effigy (The Brothers' War Commander #63)
Scavenged Brawler (The Brothers' War Commander #64)
Smelting Vat (The Brothers' War Commander #65)
Thopter Shop (The Brothers' War Commander #66)
Wondrous Crucible (The Brothers' War Commander #67)

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