Treasure Cat

Description
Treasure cats aren't born gargantuan. In fact, they're born rather small. Smaller than a house cat even! But then a treasure cat finds a single coin or a gem or something else of value. Thus, the treasure cat grows a smidge larger. "What a delightful prospect!" thinks the cat. So the cat collects more and more treasure. With each addition to its burgeoning hoard, the cat increases in size until it's larger than even the greatest ancient dragons, measuring 80-feet from snoot to tail. By the time the treasure cat reaches this legendary status, it has amassed a hoard that can rival that of most kingdoms.

And it's not interested in sharing, either.

Appendix
For more stats/abilities visit https://www.patreon.com/posts/366-days-of-day-34011840