The Unwritten Rules, Truce

As The Unwritten Rules, Truce 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.