Fear of Immobility [Duskmourn: House of Horror]

When Fear of Immobility enters, tap up to one target creature. If an opponent controls that creature, put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

As it slunk toward her, Nina told her legs to run, but they stayed rooted and rigid. She screamed—but no sound left her lips.