Professor Birch's Observations is card #159 of 160 in Primal Clash (2015), a Rare Ultra illustrated by Hitoshi Ariga. At about $18.72 it is the #26 most valuable card in the set. In a Primal Clash booster it turns up about once every 267 packs.


















See the full Primal Clash card list
An ungraded Professor Birch's Observations from Primal Clash sells for about $18.72. A PSA 10 is worth more, roughly $93.60 by our estimate, and a PSA 9 around $43.06.
It is a Rare Ultra, and it shows up about once every 267 Primal Clash packs.
Hitoshi Ariga drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Primal Clash booster packs in your browser with the set's real pull rates and keep what you pull in a digital binder. No real cards, nothing to buy.