Complex sentence: Immediately Vlad leaves Danny to handle the battle himself to which he struggles to, ultimately getting struck by lightning and smacked away, leaving Vortex to fly off to cause weather damage to other parts of the world.
Split into simpler sentences: Immediately Vlad leaves Danny to handle the battle himself to which Danny struggles to, ultimately getting struck by lightning and smacked away. Vortex flies off to cause weather damage to other parts of the world.