I. Mighty Morphin’
After several battles, Rita captures a newcomer to create an evil Power Ranger using a magic coin of her own, infused with the power of the Dragon. This Green Ranger caused major damage to her foes, until he was freed from her control by the other Rangers. He joined the Power Rangers in their battle against Rita.
Soon though, Rita created a green candle to diminish Tommy of his Green Ranger powers and return them to her. Having no choice, Tommy gave his powers to Jason to prevent Rita from gaining them.”
- taken from http://powerrangers.wikia.com/wiki/Mighty_Morphin_1