Rule 712.9

Only transforming tokens and permanents represented by transforming double-faced cards can transform or convert. (See rule 701.28, “Transform,” and rule 701.50, “Convert.”) If a spell or ability instructs a player to transform or convert any permanent that isn’t a transforming token or isn’t represented by a transforming double-faced card, nothing happens. Example: A Clone enters the battlefield as a copy of Wildblood Pack (the back face of a transforming double-faced card). The Clone will be a copy of the Wildblood Pack. Because the Clone is itself not a transforming double-faced card, it can’t transform. Example: A player casts Cytoshape, causing a Kruin Outlaw (the front face of a transforming double-faced card) to become a copy of Elite Vanguard (a 2/1 Human Soldier creature) until end of turn. The player then casts Moonmist, which reads, in part, “Transform all Humans.” Because the copy of Elite Vanguard is a transforming double-faced card, it will transform. The resulting permanent will have its back face up, but it will still be a copy of Elite Vanguard that turn. Example: A player controls Blackbloom Rogue, a Human Rogue that’s the front face of a modal double-faced card. They cast Moonmist. Blackbloom Rogue doesn’t transform.

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