Fire is not all that burns
Fire is not the only thing that burns, and nothing burns more than poison inside of a basilisk. Myths say that if you speared one while sitting atop a horse, the toxins would run up the spear, killing not only the rider but also the horse, making fire the perfect analogy.
Exert your Mind and spend an Action to create or extinguish a fire as large as A torch's flame (2 Damage per round) at a Location or on any target within Arm's Reach. These fires are mundane, and require fuel and oxygen to burn. Fires the size of a lighter or candle flame can be created or extinguished without Exerting your Mind.
Lighting a creature on fire deals A torch's flame (2 Damage per round), starting the round after the first. Armor reduces this damage, but is likely to be damaged or destroyed after one or two rounds. Fires may be extinguished by the target if they spend an Action and roll Dexterity + Athletics, Difficulty 8.
Triggering Event - When an injury (severity 2 or greater) is caused to Viper resulting in blood loss