Killer Concept: The Arsonist
Background: A Firefighter with a hero complex that actively started fires so that he could 'save' people. Unfortunately, one of his masquerades didn't go according to plan, and he found himself burning to the very flames he had set. With his last breath, he cursed all the ungrateful victims who ignored him during his career. But in that moment, the entity grabbed the Fireman, flame and all, and brought him to the dark domain. Here, the Fireman would continue starting fires and find more survivors to save from the perils of life.
Weapon: A Fireman's Ax
Ability: The Arsonist's rage causes the ground beneath his feet to erupt into flames. For the duration of his ability, if a survivor crosses onto the ground he lit aflame, they will catch on fire (revealing them to the killer) and fall into the dying state if the flames are not put out (similar to deep wound). Once the Arsonist's ability ends, the ground extinguishes, but survivors will remain aflame.
TLDR: A trailing snake ability that causes damage to survivors. Good counter for looping.