Are you a Quiet Speculation member?
If not, now is a perfect time to join up! Our powerful tools, breaking-news analysis, and exclusive Discord channel will make sure you stay up to date and ahead of the curve.
Zealous Persecution 
Ebay: $2/set
StarCityGames.com: $4/set
MOTL: $1.50/set
Real simple: This is the card that makes Black White Tokens as good as it is right now. Star City Games just sold out at $1.00. I think they'll re-up their supply and relist it at 2 bucks. Ebay usually lags behind SCG, but considering that its a must-play 4-of in the deck, there's no way they don't start selling it for more than a measly buck. It's not going to pass $2.50 or so, but might as well get them while the getting's good.
Target: $2.00 per card, June 1st
If this is the card that might revolutionize Kithkin (see the Richmond PTQ results, a couple of Kithkin decks did really well subbing ZP for Glorious Anthem), $2.00 may very well be realistic and this may become the chase uncommon of the set.People love their white weenie staples!
Glad to see you are enjoying my work! Note: Star City just put up another 200 of 'em at a buck a piece. I'm gonna keep track of how quickly they sell out…