R5K9E is the number two (2) in the series of his breed. R5K9E's favourite place to hang out with other mutants is a gravel field.

R5K9E is a rare breed and its rarity level is 'Ultra rare.' The maximum number of his kind is only 3.

Source: 'Monster Mash 2019 Day IV Finale'

R5K9E is an unique Mutant Monster for your team!