This is because it has plenty of shiny Pokemon and one of them just happens to be Kingambit
Auriok Champion had a huge spike a little while back, which shows what even just a sideboard card can do in Modern when its played across so many different decks
So two things your opponent will have to do when they see Mickey Mouse Inspirational Warrior in play, avoid having an exerted Character and banish Mickey Mouse Inspirational Warrior through a ping damage card
(1) Once per turn, when another card or effect is activated (Quick Effect): You can negate the activation, and if you do, destroy that card, and if it was a monster, this card gains ATK equal to that monsters original ATK until the end of this turn
Pokemon Scarlet & Violet: Stellar Crown Booster 6 Box Case An Adventure to Awaken the Power Within
1 Skyla Full Art $215.23 A Rare Trainer Card Trainer cards can get expensive when they depict the players favorite characters from the Pokemon franchise