Good Manners (111/132) [Gym Heroes 1st Edition] XY02 when another monster's effect is

when another monster's effect is activated: You can negate the activation

Change 1 "Elemental Hero Bubbleman" in face-up Attack Position on your side of the field and 1 monster in face-up Attack Position on your opponent''s side of the field to Defense Position

Set: Force of the Breaker Card type: Effect Monster Rarity: Super Rare Attack: 2400 Defense: 1000 When this card is Tribute Summoned

all monsters currently on the field lose ATK and DEF equal to their own Level/Rank x 300

Set: Magic Ruler Card type: Equip Spell Rarity: Ultra Rare Attack: 0 Defense: 0 A monster equipped with this card increases its ATK by 1000 points

Good Manners (111/132) [Gym Heroes 1st Edition] XY02 when another monster's effect isSet: Gym Heroes 1st Edition Type: Item Rarity: Uncommon