Prismic Golem

When Prismic Golem enters the battlefield, if
{u} was spent to cast Prismic Golem, draw a card.
If {w} was spent to cast Prismic Golem, you gain 3
life. If {r} was spent to cast Prismic Golem, you
deals 3 damage to any target. If {g} was spent to
cast Prismic Golem, put a +1/+1 counter on it.
If {b} was spent to cast it, each opponent loses
1 life, then you gain 1 life.