Prince Kael'thas Sunstrider's Gold Coin

Source
This item is fished from the fountain in Dalaran.

Use
Required for

Upon use, you gain the buff Lucky:

Context
Like Arthas Menethil, Kael'thas Sunstrider was the heir to a powerful kingdom - in his case, Quel'Thalas. And, like Arthas, Kael'thas was attracted to the sorceress Jaina Proudmoore, and contended with Arthas for her affections.