I have this idea for a story of an extremely tough warrior who is well known for his powerful body and extreme resistance, where he and a platoon of mercenaries are sent to deal with a warlord causing trouble in the battle. The warlock, before dying, uses an extremely powerful spell that causes all nearby mercenary and the warlock's body to twist and expand in really awful ways, killing them except for the warrior who, after blacking out for the pain, wakes up fully turn in to a woman