Barloban's Wyldfyre Eruption

You pull one hand down the other forearm as if to have the second hand break through the first and then point at your target with the second causing the ground undernear the target to crack open and blast them with a pyre of wyldfyre.  The target must make a Dexterity saving throw taking 3d6 fire damage, from a wyldfire source, on a failure and half as much on a successful save. For each level above 2nd that the spell is cast it deals an additional 1d6 fire damage. Wyldfyre is a powerful source of fire damage twisted by arcane magic to turn the flames a bright green color. Fire damage from a wyldfyre source bypasses ignores resistances to fire damage and treats immunity as resistance for all creatures excluding fiends.