Board Thread:Questions and Answers/@comment-101.165.55.122-20130209090653/@comment-5428123-20130209094332

The wiki prices are in Card Value. Higher end ultra rares are usually close to half their card value prices in pure potions.

Regarding Peg, I'd say 220 pp is a decent offer, though Wolf and Gery are both regularly selling for 250 pp, so I would look at maybe getting closer to 300 pp if you can. And I am by no means an expert at prices, so I may be incorrect in my assumption here.