Kenrith, The Challenged

If you would clash, First you may use one of these abilities.
{r}{t}: Shuffle target players library
{1}{u}{t}: Put target creature ontop of its owners library
{2}{w}{t}: Put target artifact or enchantment ontop of its owners library
{3}{b}{t}: Search target library for a card, and then put that card ontop of its owners library
{4}{g}{t}: Put target permanent in a graveyard ontop of its owners library