Song Jian finished reading about the Eye of Insight skill and didn't hesitate to learn it. This universal skill was much more powerful than the Lockpicking Skill, which could only be used occasionally. Not only could it reveal monster attributes, but it could also inspect the properties of certain items, making it incredibly practical.
However, when used to inspect monsters, it easily attracted their hostility. If one were a tank class warrior, it would be even more suitable: it could serve as both a scouting ability and a means to draw aggro, maximizing the skill's effectiveness.
If this Skill Book were to be put up for auction, the starting bid would be at least five million Doomsday Coins. If it caught the fancy of interested players, Song Jian wouldn't be surprised if it went for over ten million Doomsday Coins. The Eye of Insight skill was indeed worth the price.