Isaac, Ascended Mystic

When Isaac, Ascended Mystic attacks, you may choose one;
{b/g} you may choose 1 creature card with a converted mana cost of 3 or less from your graveyard, exile it, you may play this card;
{r} the targetted creature that you control gains +2/+0 until the end of the turn;
{w/u} the targetted creature gains first strike until the end of the turn;
{u} targetted player gains 2 life points.