Nahar, Inventor of Fire

Origin (as long as Nahar, Inventor of Fire is in your hand or command zone, damage cannot be dealt by abilities, instants, or sorceries)
{r}: Nahar, Inventor of Fire deals half X damage to target creature, rounded up.
{r}{t}: Nahar, Inventor of Fire deals X damage to target creature
{r}{ut}: Nahar, Inventor of Fire deals X damage to target player that has not been targeted by this ability this turn.