Once, while on your back rank, one of your bishops may hop exactly 2 squares sideways along it, ignoring anything between. The destination must be empty.
You draft Trapdoor in Buff mode. Passive: it works on its own the whole time you hold it, with nothing to activate.
As a movement card, it changes how one of your pieces is allowed to move.
“The bishop vanishes and reappears two boards over.”