Broken Moves & Abilities
The system used by Pokémon Revolution Online to handle battling while adequate, is quite sadly underdeveloped. This means that, While PRO's battle system is substantially developed, it's still a work in progress. Some Abilities and moves remain unprogrammed, incompletely programmed, or misprogrammed; these are all categorized as broken moves.
When a move or ability in PRO does not work in the same way you'd expect if you played an official Pokémon game, it is called a Broken Move or Broken Ability.