Striderstone the Destroyer

When Striderstone the Destroyer enters the battlefield choose a color. Permanents you control
gain protection from the chosen color.
{2}: Untap target permanent you control.
{p/c}{p/r}{t}: Destroy target land or artifact.
{p/c}{p/u}: Return target creature or enchantment to
its owner's hand.
{p/c}{p/b}: Exile target planeswalker. You gain life equal
to its loyalty.