Once More Round The Sun

{u}{u} Counter target spell that targets this card.
{r}{r} Creatures you control gain haste this turn.
{w}{w} Prevent all damage that would be dealt to
you or creatures you control this turn.
{w}{u}{r}: Sacrifice Once More Round the Sun
Do this only during your post combat main phase.
If you dealt damage with a creature you do not
own this turn, untap all creatures you control.
You gain another combat step and another post
combat step main phase this turn.