Xiao Xiang, Sorceress Adept

Xiao Xiang, Sorceress Adept enters the battlefield tapped and does not untap during its controller's untap step.
{r}{r}{r}: Untap Xiao Xiang, Sorceress Adept.
{r}{r}{t}: Destroy target permanent and deal damage to its controller equal to the destroyed permanent's converted mana cost.