Mouth of the Reef

(Melds from Gorlan Reef Octopus and Gorlan
Fisherman.)
At the beginning of your upkeep, put the top five
cards of your library into your graveyard and exile
your graveyard. If you have less than 10 cards in
your library, sacrifice Mouth of the Reef.
Haste, Trample, Menace
"Captain, I think the reef is breathing!"