Mysterio

is an illusionist and sorcerer, who fights the Titans.

Discovering the Titans
after being accidentally transported to Earth-833, Evan came across a giant moth, who attacks him and chases him around the island. Evan hid in a cave and figured out a way to defeat Mothra, by causing an avalanche, which apparently killed the creature.

He later returned to Earth-789, his home dimension, unaware he was followed by the giant moth.