deluxe black bolt booster box (JP) Experience the heat of the Black Bolt expansion—straight from Japan Pokémon TCG Black Bolt Deluxe

Otherwise, it does nothing

You used to be able to run it on your turn to pump your stuff in the front, and then tap it, which turned it off

That said, Possibility Storm was mostly unplayable from a competitive perspective because the deck-building cost was too high, until the right support mechanic (adventure sorceries) came along and made it into the centerpiece of a legitimate deck, so it might just be a matter of time until something breaks Unpredictable Cyclone as well

The Electric-type Pokemon's angular, metallic design interacts particularly well with the WOTC holographic pattern, creating a card that catches the light in sharp, dynamic ways