If the holder is hit by a super effective move, it consumes the Weakness Policy and its Attack and Special Attack are increased by two stages each.
A Pokémon with Contrary will have its Attack and Special Attack lowered by two stages instead, unless it is hit by a super effective move from a Pokémon with Mold Breaker.
It does not activate if the holder already has both +6 Attack and +6 Special Attack stat stages (unless its Ability is Contrary, in which case it will not activate if the holder has both -6 Attack and -6 Special Attack stat stages). It does not activate if the holder is protected from or unaffected by the super effective move (e.g. due to Telepathy). Fixed-damage moves (such as Seismic Toss or Mirror Coat) will never activate the Weakness Policy, even if the move's type is supereffective on the holder.
If multiple Pokémon each holding a Weakness Policy are hit by a super effective move at once, each hit Pokémon will consume its Weakness Policy before Symbiosis transfers any item (including Weakness Policies).
In Pokémon UNITE, the Weakness Policy is a held item that grants Attack buff upon taking damage that lasts for 3s and can stack 4 times. The buff is equal to 2%/2.5%/3% at Grade 1, 10, and 20 respectively. This item also increases HP and Attack: 70 and 0 at Grade 1 respectively and 210 and 15 at Grade 30.
Weakness Policy was introduced as an Pokémon Tool card in the Pokémon Trading Card Game during the Japanese XY Era. It was first released in the Japanese Gaia Volcano expansion before debuting in English in the Primal Clash expansion, where it was released as both a Regular card and a Secret card. When this Pokémon Tool card is attached to a Pokémon, that Pokémon has no Weakness.