Crawling Sensation

At the beginning of your upkeep, you may mill two cards. (You may put the top two cards of your library into your graveyard.)
Whenever one or more land cards are put into your graveyard from anywhere for the first time each turn, create a 1/1 green Insect creature token.

Attunement

Return this enchantment to its owner's hand: Draw three cards, then discard four cards.

Narcomoeba

Flying
When this card is put into your graveyard from your library, you may put it onto the battlefield.

Ornithopter

Scout the Borders

Reveal the top five cards of your library. You may put a creature or land card from among them into your hand. Put the rest into your graveyard.

Grapple with the Past

Mill three cards, then you may return a creature or land card from your graveyard to your hand. (To mill three cards, put the top three cards of your library into your graveyard.)

Essence Warden

Whenever another creature enters, you gain 1 life.

Caller of Gales

{1}{U}, {T}: Target creature gains flying until end of turn.

Recollect

Return target card from your graveyard to your hand.

Wood Sage

{T}: Choose a creature card name. Reveal the top four cards of your library and put all of them with that name into your hand. Put the rest into your graveyard.

Venture Deeper

Target player mills four cards. (Then exile this card. You may cast the creature later from exile.)

Merfolk Secretkeeper

Merfolk Secretkeeper // Venture Deeper

Commune with the Gods

Reveal the top five cards of your library. You may put a creature or enchantment card from among them into your hand. Put the rest into your graveyard.

Mass Diminish

Until your next turn, creatures target player controls have base power and toughness 1/1.
Flashback {3}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Reclaim

Put target card from your graveyard on top of your library.

Island

Forest

Glimpse the Future

Look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard.

Ghoultree

This spell costs {1} less to cast for each creature card in your graveyard.

Eternal Witness

When this creature enters, you may return target card from your graveyard to your hand.