selling dragon and bull at the same time is bad luck. i mean, not as a superstition. u know the dice roll rite? melee damage calculated by that dice roll or maybe rice doll. anyway, if u sell a dragon and a bull at the same time, the dice begin to skip high numbers so u cant give high damage to your opponent. keep that in mind. i suggest sellin em seperately. its same for dragon and mad cow. just try not to sell reptilians and mammals at the same time.