High total HP and a 150-damage attack that pulls 3 Energy cards from your deck is good - but the GX special ability Altered Creation proved utterly meta-changing, allowing you to permanently upgrade the attack damage of all Pokmon on your side by 30 for the rest of the game - and take two prize cards instead of one whenever one of those Pokmon KOs one of your opponent's
Both markets have examples of high-value cards, and both can serve as good long-term holds if you choose wisely
Aggressive decks that play pump spells tend to operate on few lands, so it can be difficult to cast a threat and leave up much interaction on the same turn
Fun fact, Panharmonicon only counts artifacts and creatures, whereas Virtue of Knowledge counts any permanent
BPhillipYork: Exile removal for enchantments and artifacts is okay (or battles lol), and you're always going to get something with this, but they'll just have an incentive to blow up your Thief to get their card draw, so that's probably a net loss for you
