Rune

At 1st level, you can create a blast rune in a desired location. Any creature entering a 5-foot area around the rune takes an amount of damage equal to 1d6 + 1/2 your warpriest level. This rune deals either acid, cold, electricity, or fire damage, decided when you create the rune. The rune lasts a number of rounds equal to your warpriest level. At 10th level, you can touch an ally and inscribe a secret rune on their weapon. For 1 minute, all of their weapon attacks are treated as adamantine, cold iron, and mithral for all purposes.