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
Maybe I could transplant the action of The Prodigal Sorcerer to another continent
Leading the deck would be Inalla, Archmage Ritualist, who could Heat Shimmer your freshly cast Wizards for 1 mana
The Kuriboh Siblings finally arrive
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 is probably efficient enough to slide into some non-energy UW lists, but for dedicated energy decks its an A+