Eugene, Witness of Oblivion

Flash, Phasing, Flanking
{t}:Cast Target Instant or Sorcery from your
Graveyard then exile it.
{t}:Target Planeswalker. Roll 1D6. If it Rolls an
Odd number, Bury all of Target Planeswaker's
Creatures. If it Rolls an Even Number, Bury all
of your Creatures. A Planeswalker loses life equal
to the number of Creatures lost this way.
{t}: Turn the Turn Count 1 Back or Forward.