Mumbo, though most people call him "Mumbo Jumbo" due to his delight in altering his size.

Mumbo is a Protogen I've been playing with for awhile.
The stone at the end of his tail is a star shard leftover from a supernova. It's power allows him to alter his size, no matter how big or small as he desires. Mumbo loves the feeling of getting larger and likes to play with his size-changing abilities.
He isn't normally quite THIS big, but thought it would be a nice display of his power.