[Always]<Valid> Square <Effect> Your "Ayase Kamiyugi" on Square gains the following ability. " [Boot]<Valid> Square <Cost><Effect> Until end of turn, all of your opponent's current Z/X on Square has their Cost reduced by 3. However, the Cost cannot be equal to or less than 0." [Auto]<Player> "Ayase" <Valid> Square <Trigger> This card attacks. <Effect> You may choose a Black card in your hand, and put it into Trash. If you do, put all of your opponent's Cost 3 or less Z/X on Square into Trash.