Yu-Gi-Oh! K9-00 "Hound" - Justice Hunters (JUSH)

2 Level 5 monsters
Cannot be destroyed by battle or your opponent's card effects the turn it is Special Summoned. Each time your opponent activates a monster effect, this card gains 500 ATK when that effect resolves. Once per turn, during the Standby Phase: You can detach 1 material from this card, then target 1 card on the field; banish it.