Kingambit was a stage 2 that powered up basics, it took up too much deck space and took too long to set up to genuinely be worth its boost. This garganacl isn't anything to write home about, but it works well in decks such as Mamoswine
Rare candy being a copy and paste from the regular tcg seems overpowered. Getting two gardevoirs to power up a fully powered Mewtwo turn 2 seems really busted