Invoked [Cost: 2] - When invoked, the rune gathers energy for a moment before exploding. After invoking the rune, it will explode at the end of your next turn, dealing 2d6 fire damage to all creatures in a 5 ft. radius who fail a Dexterity saving throw. This burst will also ignite combustible objects within the area.

Scribed [Cost: 1] - When scribed onto an object, if the object is combustible, it immediately bursts into flames. These flames deal 1d4 fire damage at the start of each turn a creature is touching them, and spreads to nearby combustible objects within 5 ft. If the object is not combustible, its temperature increases sharply, making it hot to the touch; enough to deal 1d4 fire damage at the start of each turn a creature maintains contact with it. A number of cubic feet of material equal to your proficiency bonus (max 5) can be affected. Non-combustible objects remain heated until dispelled or you dismiss the rune.

Synthesis - Combining this rune with another intensifies the effects of the other rune, increasing the number of damage dice of its effects by 1 for each 2 points of Flow Reserve expended.