Balor's Magical Eye

Balor's Power Eye is one of Merlin's magic item, which it is named after the one eyed god, Balor.

Background
Merlin created this magical earring in order to sense one's Power Level.

Abilities
The ear ring allow one to sense one power level and measure it through Power, Strength, and Spirit, and then combine it together to the opponent's true power level.

Trivia

 * As it was mention above, Balor's Power Eye is named after the god, Balor, who used his one eye to bring forth a calamity and could see through his enemies.