While I have not played the game known as Changed, I've made up my own Changed FC, inspired by Puro and those of the Black Goo Wolves. His Name is Brown. A Brown Colored Goo Wolf who is actually different than other Goo Creatures. He does not cause Transfur on Humans and is more of a Healing Goo Wolf. He was created by Medical Scientists with impressive Healing Abilities. My Main OC, John, is Brown's Partner and Patient. Brown can engulf John to protect and Heal him, should John take any damage. If it is safe, Brown can release John back into the world to move around. The Mask that Brown wears is made of Powerful Gold Material that the Medical Scientists added to withstand any Damage that is aided at it. This is because Brown is Strong in both Offense AND Defense. And the Golden Mask is Extremely Durable as if it was unbreakable. Not only does his insides heal injuries but his healing touch heals injuries, as well, but not as strong. His entire body is a mobile healing station. He can move, even if there's someone in his Stomach, which is used for Healing and Endosoma purposes.