5 cards where the text includes “transmute” and the color identity ≤ BR

Brainspoil (Ravnica: City of Guilds #78)
Dimir House Guard (Ravnica Remastered #73)
Dimir Machinations (Ravnica: City of Guilds #84)
Netherborn Phalanx (Ravnica: City of Guilds #99)
Shred Memory (Ravnica: City of Guilds #105)

The arc of my blade has carved a path of light to the end of these results.