Spellican

Spellican is a high-ranking Dream Eater and one of the main bosses of the eight installment of the Kingdom Hearts video game franchise, Kingdom Hearts 3D: Dream Drop Distance. A strange and large flying bird which wears a wig-like spellbook underneath in it's hat with the pages resembling hair. With his power over reading powerfull spells from the spellbook, he can cause heavily damage to his victims, making him one of the strongest enemies in the game. He had a minor role in the recently Disney Villains War 3, which his role was to test the newly arrived Hades in the CGI universe

Tasked To Kill A God
Seeing potentional to the God of the Underworld's powers, Young Xehanort summoned the Dream Eater sorcererer to test the flaming god's abilities. At first, Hades, thinking that he is an easy opponent, sent his loyal dog, Cerberus, to deal with the creature, only to be blasted by a thunder-spell of the Dream Eater. After the death of the Guard of the Underwolrd, Spellican acted quickly by casting a spell at Hades. This spell, not only didn't killed the god, but it boosted Hades powers instead. Risking nothing else, the Dream Eater attempted to flee the battlefield, only to be killed by Hades god powers in his anger for losing his beloved dog.