In short, there's plenty of room in Top's corner for it to be both a constant annoyance of organizing and reorganizing cards, and also an extremely powerful, resilient artifact that can be a win-con for an entire deck
It was played everywhere, and since it was colorless unlike Akroma, it was played in more decks, and the was the target of Tinkers everywhere
Super Rare Cards Even more powerful than Rare Cards are the Super Rare Cards
Also, there is always the possibility of having your Eternatus prized
Neutralization Zone (060/064) As the very first Ace Spec Stadium card, Neutralization Zone has the potential to shake up the meta quite a bit, and its likely that players will need to ensure they have some kind of Stadium removal plan, or at least add a few Stadium cards of their own into their decks in order to be able to counter Neutralization Zone
Offering a fresh hand of eight cards if your opponent has three or fewer prize cards remaining, Lacey offers a ridiculous amount of card advantage with a little bit of setup