That has a lot to do with how the franchise swept the whole world in Poke Mania and the great marketing through several different venues, ranging from anime to mobile games, and adding more with each installment
Use this to power out a turn-one Chalice of the Void or a turn-two planeswalker
If combined with another card, such as Dunsparce that could take away its weakness or other cards that make for good combos, Wigglytuff could become a very strong card to come up against
However, if the added monster is a normal monster, players can special summon it and destroy a monster the opponent controls with ATK that is equal to or higher than that monster's ATK
This Item card is a low-effort way to potentially cause the opponent to miss a turn of attack
Leading the deck would be Inalla, Archmage Ritualist, who could Heat Shimmer your freshly cast Wizards for 1 mana