As an action, flames wreathe a creature that you can touch or see within 10 meters. The creature must make a Fortitude saving throw.
On a failure, it takes 3d10 fire damage and is burning 3.
On a critical failure, it takes twice as much damage and is burning 6.
On a success, it takes half as much damage and is burning 1.
On a critical success, it takes no damage.
You can increase the damage by 3d10 and the burning level by 3 for each additional mana expended.