Once per turn, when your opponent activates a card or effect that targets 1 WATER monster you control (and no other cards) (Quick Effect): You can negate the activation, and if you do, destroy that card
Its really as simple as that, and with the exception of a few cards, it almost exclusively appears on Zombie tokens created by cards from Innistrad: Midnight Hunt
The community often refers to this as waifu tax. Collectors frequently show off their waifu collections in online communities, making forum and community posts replete with children from the Pokmon universe including Misty, Lillie, and Marnie
Follow any instructions provided by the OTS regarding their Deck List collection process, if applicable
MTG became popular thanks to its innovation and adaptability