All you need to do is find the databases entry for your card, answer questions about its condition, set its price, and publish your listing
fame, infamy , popularity, impact, and power, to name a few
Threatening this play gives UR Improvise a bluffing aspect reminiscent of Twin, wherein opponents want to hold up mana when possible to interact with a sudden lethal attack
People are paying $5,000 for a pack of Pokemon cards at GameStop
I think [[Silverquill, the Disputant]] is the sleeper of the five
Keep in mind that besides all the huge expensive threats were planning to reanimate, the deck also runs a bunch of two-mana Merfolk Looters and one-mana Mother of Runes-type cards, so this is more likely than you might think