Thanos, The Mad Titan

{r}{r}{r}: Deal 5 damage to any target.
{u}{u}{u}: Choose a new target for target spell or ability.
{b}{b}{b}: Bring back target creature or planeswalker from a graveyard and exile it at the endstep.
{w}{w}{w}: Blink target permanent and return it at the endstep.
{g}{g}{g}: Destroy target enchantment or artifact.
{w}{u}{b}{r}{g}{c}: Each player shuffles all permanents they own and randomly sacrifices half of them rounded down.