Not just that, he also can restore mana to allies. He should do that by using his Illuminate that deal tons of AoE damage. Keeper of the Light is a nuker that his job is to push and also counterpush the enemy. However, when faced with the challenge of chaos, or the forces of darkness, his primordial light bursts forth, and his full power is revealed, transforming him once again into a force to be reckoned with. His majestic truth lies hidden beneath the outward appearance of a slightly doddering old man who barely stays in the saddle. He is a power grown sentient in the dawn of the universe, and now rides forth in all planes at once, one step ahead of pursuing chaos, bearing his gift with him at the end of a radiant staff. Ezalor long ago escaped the Fundamental plane, separating from the other ancient forces to which he was bound within the great Primordial harmony.
Upon a pale horse he rides, this spark of endless suns, this Keeper of the Light.