Switch, Great Ball, Pokmon Catcher, and one or two other trainer cards are still legal because they have been reprinted with F, G, or H regulation marks, so even though you are not playing the new version of the card, it has the same effect as the old one, so old editions of standard legal cards are legal for the standard format
The leading card itself is fantastic for punishing high-energy decks, which at this point is most decks in ranked play, but especially great against Grass-type decks, as it single-handedly wiped the Celebi ex/Serperior combo from the meta
In mainline Pokmon games, starting from Pokmon Red and Blue , Ivysaur has been a staple for players choosing Bulbasaur as their starter Pokmon
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Offering two tokens instead of one, this sorcery more than makes up for its increased cost