The current system is more arbitrary, and a lot of Rule 0 talks end up in the controversial "My deck is a 7" statement, which doesn't help determine what decks can do, what their win cons are, and how power-crept a given deck truly is
It's possible some sales were listed with inflated condition assessments, but you should expect to pay right around the market price for a clean card.
It seems like a great inclusion in this precon, and you can buff it beyond its own stats for large amounts of energy too
The Gitrog Monster Lands commanders like The Gitrog Monster that allow you to play extra lands are always helpful for triggering landfall abilities or any other land-based abilities
5 Lightning Energy: EX Era (Professor Program Promo, 109) $19.88 Charging Up The Scene The Professor Program is an exclusive role that allows the most devoted players to register themselves to become professors who teach and help others play the TCG
Leinore is particularly noteworthy for her Coven ability