It will not stop you from playing these cards even if you have no Benched Pokmon to replace them, so playing them while you have no Benched Pokmon will cause you to immediately lose by having no available Pokmon
Applying Special Conditions and how to recover Now that you know the basic effects of all Special Conditions in Pokmon TCG, here are the details of how they are applied in a physical game: Do Special Conditions Stack
Kiki-Jiki, Mirror Breaker Once upon a time, Kiki-Jiki was a menace in a deck that had to catch a ban because of how dominant it was in the format
If you look in the art, you'll see all sorts of things stuck to it, weapons of former creatures that fought it, a person that formerly fought in its armor, horseshoes (it was the set's expansion symbol), the power/toughness box and even the corner of its own art
Going off of gacha standards, there'll probably be one or two of these cards available to pull for on a rotating basis