Depth of Soul

You create a blue flame in your hand and then explodes. Every creature that has malicious intentions against you or is lying will start burning. This fire cannot be extinguished by water. If creature wants to be saved, it must use wish, drink 10 flasks of red dragon's blood to change the magical fire into normal fire or use power word heal. Every minute, creature that is burning with this magical fire must do a Constitution Saving Throw. On a failure target takes 2d10+5 fire damage and 1d6+2 psychic damage. Successful saving throw reduces damage by half.