Historical Rules · 27 February 2026
Rule 709.5d
Official source text from the 27 February 2026 Rules release
A permanent with a shared type line is given the “left half unlocked” designation as it enters the battlefield if its left half was cast as a spell. It is given the “right half unlocked” designation as it enters the battlefield if its right half was a cast as a spell. If it’s entering the battlefield and neither half was cast as a spell, it enters with neither unlocked designation.