Parcelbeast
{2}{G}{U}
Creature -- Elemental Beast
2/4
Mutate {G}{U} (If you cast ~this~ for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)
{1}, {T}: Look at the top card of your library. If it's a land card, you may put it onto the battlefield. If you don't put the card onto the battlefield, put it into your hand.
Risen Reef
{1}{G}{U}
Creature -- Elemental
1/1
Whenever ~this~ or another Elemental you control enters, look at the top card of your library. If it's a land card, you may put it onto the battlefield tapped. If you don't put the card onto the battlefield, put it into your hand.