Chronos

Chronos is a time manipulatiing being; one of the Greek gods.

Long ago, he was travelling the universe in search of a place for him to learn how to control his powers. He eventually settled on going to Earth. When he arrived there, beings in dark cloaks mistook him for a monster and then sealed him away in the Rock of Time, placing the stone in a dark cave. While within the rock, he learned to control his powers from within the cave.

When Lord Zedd decided to reverse time after becoming inspired by a class assignment that the Power Rangers were doing, Chronos didn't want to follow the orders of an evil being, so instead he focused his powers on just two place located on Earth. Those places were Angel Grove High School and the World Peace Conference building. His partner, Mnemosyne, cast her memory spell immediately after, allowing the adult memories of those affected by this spell to be maintained.

When the Mighty Morphin Mini Rangers went into the cave, they battled the monsters sent by Zedd to guard the Rock of Time. The combined blast of Saba and the Power Blasted freed both beings.