Hippolyta's Girdle

Origin
Hippolyta was the legendary queen of the Amazons, an all female warrior nation, and the daughter of the war god Ares. Hippolyta met Heracles on his ninth labor, which was to retrieve her girdle. She was so impressed with Heracles presence that she willingly gave her the girdle; other stories say she met the founder of Athens, Theseus.

Effects
Any woman who wears the girdle will gain the strength and fighting spirit of an Amazon warrior queen, but if they use it too much they gain the mindset of one, attempting to carve out an empire for themselves by overthrowing or outright murdering men in positions of local power.