+Sea (204)
Domain — When this creature enters, look at the top X cards of your library, where X is the number of basic land types among lands you control. You may put one of those cards on top of your library. Put the rest on the bottom of your library in a random order.
Whenever a player cycles a card, this creature gains flying and shroud until end of turn. (It can't be the target of spells or abilities.)
: Search your library for an enchantment card and reveal that card. Put it into your hand, then discard a card at random. Then shuffle.
: Search your library for an instant card and reveal that card. Put it into your hand, then discard a card at random. Then shuffle.
Trample
Enchantment spells you cast from your hand have cascade. (Whenever you cast an enchantment spell from your hand, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)
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