As Icon of Ancestry enters the battlefield, choose a creature type.
Creatures you control of the chosen type get +1/+1.
{3}, {T}: Look at the top three cards of your library. You may reveal a creature card of the chosen type from among them and put it into your hand. Put the rest on the bottom of your library in a random order.
You must choose an existing creature type, such as Vampire or Warrior. Card types (such as artifact) and supertypes (such as legendary) can't be chosen.