An ancient warrior from the planet of Phaedos, Ronin possesses the ability to morph into any ranger connected to the morphin grid through the use of his Master Morpher — the transformation device in which he created with the aid of his ally Ninjor, the creator of the legendary power coins. 

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Serving as a mentor to André Johnson, Ronin seeks to assist the new Green Ranger in building his team of Earth’s finest heroes in an effort to battle against the planet’s greatest threats.