Adungbrus

Once per 2 long rests, or 4 short rests, double your health by your max health, (2 times your max health added to your current), and double your size, causing fear to your enemies (2d6+4 prone duration in minutes), and turn yourself into a fiery version of yourself. This lasts for 1 hour (in game), making it so that even dragons have disadvantage to physical attacks (disregard monster sheet info, creatures have disadvantage on physical attacks.