First and foremost, always ensure your precious cards are housed in proper, acid-free protective sleeves and then ideally placed into top loaders or even a binder with UltraPro pages
Not only does this ridiculous card have 3000 ATK and DEF points, but it also allows players to declare an attribute and change all face-up monsters to it, then prevent the opponent from attacking with cards of that attribute
The game itself is identical to the in-person, in-paper TCG in that you need to knock out all of your opponents Pokmon, take all your prize cards or deck your opponent - by causing their stack of cards to run out - to win
Whether it's speeding up deck cycling, or disrupting the opponent's tactics, these cards can provide a significant tactical edge
Disregarding that insane value, assuming youre in mono-green or have excellent fixing in Standard, it also has an activated ability to transform