Ninjor
Ninjor is a fictional character from the Power Rangers universe, appearing in the Mighty Morphin Power Rangers television series.
When Rito Revolto destroyed their powers, the Power Rangers sought out Ninjor for assistance. Ninjor reenergized their Power Coins and gave them the Ninja Zords, and from then on assisted the Rangers in battle whenever they needed him. He was often captured by the villains when their plans required a power source of some kind. Ninjor resided inside a vase within the Temple of Power, which was itself located in the Desert of Despair. He was also the creator of the original Power Coins, the Battle Borgs, and presumably the Shogun Zords and the Aquitian Power Coins. After the Rangers became the Power Rangers: Zeo, Ninjor was never to be seen again.
As a ninja master, Ninjor had a wide array of powers at his command. He had a large white cloud that he rode into battle on, and could disappear into puffs of smoke at will. He could also expand to the size of a Megazord (which he called "Ninjor Expansion Mode"), and was able to transform into a powerful samurai-esque Battle Mode. Normally, Ninjor wielded a katana blade in battle, but in Battle Mode, he could connect the weapon with its sheath to form a powerful lance. Finally, in Battle Mode Ninjor was able to generate and throw explosive fireballs from his hands, which were often instrumental in destroying Rita and Zedd's monsters.
It is possible, though not proven, that Ninjor was involved in the founding of the Ninja Academies seen in Power Rangers: Ninja Storm.