Crazy Horse's Tomahawk

Origin
Crazy Horse (Literally: His-Horse-Is-Crazy) was an American Indian war chief of the Oglala Lakota suntribe of the Lakota people. He fought fiercely against the U.S. federal government against enroachments onto his tribe's territory and way of life. He was known to be savage in battle and his leadership played the part in many victories for the Native American people including indirectly causing Colonel Custer's infamous defeat.

During a short-lived stint as a Warehouse clerk, one agent released information on several artifacts to a noted game developer he was fond of, Tetsuya Nomura. The agent was fired, but Nomura used this artifact as the basis for the Kingdom Hearts character Lexaeus' weapon.

Effects
When held, the physical strength of the holder is magnified ninefold, providing they are taking up arms to defend something they believe in. The colossal force of the tomahawk in enough to shatter the earth and destroy solid rock. When the battle is over or the tomahawk is removed from the user, the experince a severe drop in energy which, under some circumstances, could be fatal.