Grozoth
{6}{U}{U}{U}
Creature -- Leviathan
9/9
Defender (~this~ can't attack.)
When ~this~ enters, you may search your library for any number of cards that have mana value 9, reveal them, put them into your hand, then shuffle.
{4}: ~this~ loses defender until end of turn.
Transmute {1}{U}{U} ({1}{U}{U}, Discard ~this~: Search your library for a card with the same mana value as ~this~, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)
Tidewater Minion
{3}{U}{U}
Creature -- Elemental Minion
4/4
Defender (~this~ can't attack.)
{4}: ~this~ loses defender until end of turn.
{T}: Untap target permanent.