As a Base Set original, not a Team Rocket variant, it carries an added prestige that the market clearly recognizes
Fighting types like Donphan PRIME () give this deck a lot of trouble since they can take one-hit KOs on Tyranitar
All Spongebob Secret Lair Bonus Cards so Far As of the writing of this article, we know about the following Spongebob Secret Lair cards: Smothering Tithe Collector number 7009 cOuNTeRspELl Collector number 7010 Dismember Collector number 7011 Command Tower Collector number 7012 There could be more that have not been discovered yet, but this is already more bonus cards then there are Secret Lairs
There is also a cycle of legendary, rare creatures, with powerful effects that can turn the course of a game: Sephara, Skys Blade (White), Atemis, All-Seeing (Blue), Vilis, Broker of Blood (Black), Drakuseth, Maw of Flames (Red), Gargos, Vicious Watcher (Green)
In the article announcing the banning, Wizards suggested that it was willing to see if players would tolerate a "skill-testing, one-deck metagame." As such, it seems that a deck being 75% of the format doesn't automatically necessitate a banning
