Ancestral Altar

All red and green creatures you control gets +1/+1.
{2}:Target red or green creature gains trample and haste until the end of the turn.
{r}{r}{g}{g}{t}, Sacrefice this card: Untap all red and green creatures you control they get +2/+0 and gains trample until the end of the turn. When the next combat phase ends there is one additional combat phase after that.