If a spell or ability instructs a player to convert a permanent, and the face that permanent would convert into is an instant or sorcery face, nothing happens.
June 6, 2025 · Final Fantasy
If a spell or ability instructs a player to convert a permanent, and the face that permanent would convert into is represented by an instant or sorcery card face, or is a transforming token that was created with an instant or sorcery face, nothing happens.
April 14, 2023 · March of the Machine
If a spell or ability instructs a player to transform a permanent, and the face that permanent would transform into is represented by an instant or sorcery card face, or is a transforming token that was created with an instant or sorcery face, nothing happens.
July 3, 2020 · Core Set 2021
If a spell or ability instructs a player to transform a permanent, and the face that permanent would transform into is represented by an instant or sorcery card face, nothing happens.