"There's no question that these waters are treacherous, but if there's one thing I've learned in all my years of sailing . . ."

Grizzled Angler

{T}: Mill two cards. Then if there is a colorless creature card in your graveyard, transform this creature. (To mill two cards, put the top two cards of your library into your graveyard.)

". . . it's that the lure of the sea is impossible to ignore."

Grisly Anglerfish

{6}: Creatures your opponents control attack this turn if able.

Grizzled Angler / Grisly Anglerfish