Capricious Chest

Once per battle round, when a Psychic test is taken for a model within 18" of the bearer, after any re-rolls have been made, you can change the result of that Psychic test as follows: if that model is from your army, you can change any dice result of 1 to a roll of 6; if that model is from your opponent's army, you can change any dice result of 6 to a roll of 1.