fluorine 9 Fluorine is very toxic. Breathing in fluorine gas can kill you. It can also be absorbed through your skin, among other ways. Skeletal fluorosis, a bone disease caused by excessive accumulation of fluoride leading to weakened bones. Fluorine prefers to fight at a distance, but can up close if needed. Attacks: - Fluorine can throw electrons, becoming a positive ion. These are like little electric balls that will zap you. - fluoride rain, poisons people - Fluoride gas, poisons everyone. - Can be absorbed through the skin of somebody and lead to fatal consequences - Can bond with other elements to make different combos, more unique attacks depending on what element.