Battlewise Knight

{r/w}, Discard a card: target creature blocks Battlewise Knight this turn if able.
{1}{r/w}, Discard a card: until end of turn, Battlewise Knight gains your choice of double strike, protection from red or white, vigilance.
{1}{r/w}{r/w},{t}, Discard a card: Destroy nonwhite creature with power 2 or less.