Matthew upgrade:
Upgrade mutation: Feather Bones
New Mutation: Muscle Stimulus
New Unique Mutation: Poisonous Claw: Matthew's nails turns to a material of similar hardness as his fangs, it also able to introduce a small amount of paralytic poison to those wounded by it. Enough dose in one's blood, and their heart will stop. (Bonus: Poison claws and immunity to this specific poison) (Mutation Effect: All of his nails turns purple)
Negative Mutation: ?
Must have mutation: In Forma, Quod Puritas: