Path of Reckonings

At the beginning of your post combat main
phase, if an opponent lost life this turn, that
player sacrifices a nonland permanent.
{4}{b}{r}, {t}: Exile a creature card from a
graveyard. If that creature had power of 6 or
greater, untap creatures you control. Then, immediately begin an additional combat
phase. After this additional combat, move to the
end step.