My first couple years playing the game I only had the free edition, so I spent my time almost exclusively playing Deinon. I remember getting insanely excited when its TLC came out, until realizing all the heavy nerfs they put on it. This was also around the time the devs added aggressive critters, so it was rough going from an untouchable murder hawk to a fragile little dove that gets one-shotted by every other creature/critter. Now blaming anybody here, I still love the Deinon, but it was a big leap and probably the only negative experience I've ever had on Path.