Deserted Deep

Enchant Island
This Island produces an additional {u} and {b} when tapped for mana, and has hexproof.
{x},{t}: Tap X Homarid, Crab, and/or Lobster
cards you control to shuffle X target creature
cards from your graveyard into your library.
Merfolk, Serpent, and Leviathan cards cost {1} less and have flash.