Mewtwo's ability if it was introduced in Gen 8/9: Soul Shattering Psyche (gives a 1.3x boost to psychic type attacks, gives them a 50% chance to confuse, raises special attack by 1 for every KO)
Koraidon and Miraidon's ability if they were introduced before Gen 5: Pressure
Koraidon and Miraidon's ability if they were introduced before Gen 5: Pressure