56 x 87 mm card sleeves [Popcorn Games] Premium Sleeve HARD 87mm (50 sheets) Most Standard Sleeves are 40 microns thick Mayday MDG-7040 Standard USA Card

You can grab a box of Pokmon Terastal Festival, which comes with 10 booster packs (10 cards each), for roughly $79.99 / 69.99

Its not even legendary, so you can run multiples of this card

But, is that too much

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It does 80 base damage, but does another 80 damage if the card has at least two extra energy cards attached to it

It can also untap lands enchanted by Wolfwillow Haven or multi-mana lands like Lotus Field which could lead to combo decks like Pioneer Lotus Breach using it for both protection and mid-combo mana generation