If the input is x , the most important term in a polynomial function is of the form Cx n , where C and n are constants
Those reserved list cards are still being used in Legacy formats and people want to have those exact cards in a reprinted set, not bad doppelgangers
But once you were able to search it up and put it into play at instant speed, all for two mana, Batterskull became a staple for any Stoneforge Mystic package
Instead, this card has slowly been creeping up over the past few months as supply naturally dwindled
Anyway a decade-ish later, the PPTQ / RPTQ format had come out, and I could at least try to ladder up without the prohibitive travel historically required to try to grind back onto the Pro Tour
Perhaps more important is Atraxa's enters-the-battlefield ability