Pulahno, Merfolk Commander

Other Merfolk you control get +1/+1
Whenever a Merfolk creature enters the
battlefield under your control, it explores.
Whenever a Merfolk you control deals combat
damage to a player, look at the top 3 cards of your library. You may reveal a Merfolk or a land card
from among them and put that card into your
hand. Put the rest of the revealed cards on the
bottom of your library in a random order.