Dragon overloader (uncontrolled)

Dragon overloaded is a spell that can only be cast when the user and is a champion of a great dragon and has seen an at least ally fallen in combat when this has happened they can channel their rage and anger into a singular burst of energy upon casting they gain AC+5 and gain movement speed * 1.5 till the spell is dissipated and unarmed attacks do 2d6 bludgeoning but while in this state the user can not perform spells without making charisma stat save of DC 15 the spell can only be dispelled until they have left combat or made wisdom save of DC 12 or been defeated if the spell is still active they must attack the nearest entity including allies one dispelled the user takes one level of exhaustion