The helmet of the stalwart and the true. Greatly enhances both the health and attack capability of the wearer, while greatly increasing his experience in every battle fought.[src]
The Adamantine is a helmet found in Infinity Blade I. It can be purchased in the store for 28,200. It increases the health stat by 6, the attack stat by 4, and grants XP++. It requires 9,999 xp to master.