Kenrith, The Challenged

Whenever you would lose a clash, you may activate one of the following abilities, which may alter the result.
{r}{t}: Shuffle target players library
{1}{g}{t}: Put target creature ontop of their owners library
{2}{w}{t}: Put target enchantment or artifact ontop of their owners library
{3}{u}{t}: search target library for a card and put it ontop of their owners library
{4}{b}{t}: Put target card in a graveyard ontop of their owners library