You raise your hands above your head and arch them down on the sides of your body bending them at the elbows until your elbows touch your ribs as your forearms are covered in bright green flames.  You then force your arms out expelling the fire from them and casting them out as a massive wave of flame.  All creatures in a 60ft cone take 6d8 fire damage, from a wyldfyre source, and must make a Strength saving throw.  On a failed save the creatures take an additional 2d8 fire damage and 2d8 force damage and large or smaller creatures are knocked prone on a success they do not take any additional damage and are not knocked prone. 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.