Silver Fox in Blood-Dyed Robes

Snow Yojutsu: Silver Fox in Blood-Dyed Robes (雪妖術『血染め衣の白銀狐』) is a Snow Magic spell.

Description
With an open scroll, the user assimilates Snow Magic into their body, turning their hair silver and growing foxlike ears and tails. The cold magic spreads frost on the user's surroundings. When also boosted by Zetten, the user's attacks in this form are capable of cutting through the skull of a monstrously large dragon.