Troll Hoard

When Troll hoard enters the battlefield look at the top 5 cards of your library. You may reveal and number of goblin's from among them and put them into your hand. Put the rest at the bottom in any order.
{u}{u}: Look at the top 5 cards of your library. You may reveal and number of goblin's from among them and put them into your hand. Put the rest at the bottom in any order.