This item is acquired in-game. See its sources below.
Transforms the enemy into a penguin, wandering around incapacitated for 1 min. While affected, the victim cannot take actions but will regenerate health very quickly. Damage will cancel the effect. Limit 1. Only works on Beasts, Humanoids and Critters. When critters are affected, can affect multiple targets, and has a duration of 1 day.
Spell effects bound to this item, from first-party game data.
Tome of Polymorph: Penguin is not traded on the Auction House, so it has no live market price. Its first-party game data (identity, effects and sources) is read from the official World of Warcraft client build.
TheWoWDB