Search your library for a green creature card with converted mana cost X or less and put it onto the battlefield, then shuffle your library. Shuffle Green Sun's Zenith into its owner's library.

, Pay 1 life, Sacrifice Windswept Heath: Search your library for a Forest or Plains card and put it onto the battlefield. Then shuffle your library.

: Add to your mana pool.
, Sacrifice Wasteland: Destroy target nonbasic land.

Exile target creature. Its controller gains life equal to its power.

Exalted
: Add , , or to your mana pool.

: Target creature you control gains protection from the color of your choice until end of turn.

Knight of the Reliquary gets +1/+1 for each land card in your graveyard.
, Sacrifice a Forest or Plains: Search your library for a land card, put it onto the battlefield, then shuffle your library.

Exalted
, Sacrifice Qasali Pridemage: Destroy target artifact or enchantment.

When Stoneforge Mystic enters the battlefield, you may search your library for an Equipment card, reveal it, put it into your hand, then shuffle your library.
, : You may put an Equipment card from your hand onto the battlefield.

, Pay 1 life: Add or to your mana pool.
, , Sacrifice Horizon Canopy: Draw a card.

, Pay 1 life, Sacrifice Misty Rainforest: Search your library for a Forest or Island card and put it onto the battlefield. Then shuffle your library.

: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn.

(Dryad Arbor isn't a spell and it's affected by summoning sickness.)
Dryad Arbor is green.

, Pay 1 life, Sacrifice Wooded Foothills: Search your library for a Mountain or Forest card and put it onto the battlefield. Then shuffle your library.

: Add to your mana pool.
: Return target legendary creature to its owner's hand.

Whenever equipped creature deals combat damage, put two charge counters on Umezawa's Jitte.
Remove a charge counter from Umezawa's Jitte: Choose one - Equipped creature gets +2/+2 until end of turn; or target creature gets -1/-1 until end of turn; or you gain 2 life.
Equip

Equipped creature gets +2/+2 and has protection from white and from black.
Whenever equipped creature deals combat damage to a player, you gain 3 life and you may return up to one target creature card from your graveyard to your hand.
Equip

Noncreature spells with converted mana cost 4 or greater can't be cast.
Noncreature spells with in their mana costs can't be cast.

Return a Forest you control to its owner's hand: Untap target creature. Activate this ability only once each turn.

:Exile target card from a graveyard. If it was a creature card, put a +1/+1 counter on Scavenging Ooze and you gain 1 life.

Flash
Flying, protection from blue
Return a Forest you control to its owner's hand: Untap target creature. Activate this ability only once each turn.

Trample
Terravore's power and toughness are each equal to the number of land cards in all graveyards.

First strike
Noncreature spells cost more to cast.

Thrun, the Last Troll can't be countered.
Hexproof
: Regenerate Thrun.

At the beginning of your draw step, you may draw two additional cards. If you do, choose two cards in your hand drawn this turn. For each of those cards, pay 4 life or put the card on top of your library.

Equipped creature gets +2/+2 and has protection from black and from green.
Whenever equipped creature deals combat damage to a player, that player discards a card and you untap all lands you control.
Equip

Islands don't untap during their controllers' untap steps.

Split second
Destroy target artifact or enchantment.

Living weapon
Equipped creature gets +4/+4 and has vigilance and lifelink.
: Return Batterskull to its owner's hand.
Equip

As Pithing Needle enters the battlefield, name a card.
Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.

Bojuka Bog enters the battlefield tapped.
When Bojuka Bog enters the battlefield, exile all cards from target player's graveyard.
: Add to your mana pool.

Exile target creature. Its controller may search his or her library for a basic land card, put that card onto the battlefield tapped, then shuffle his or her library.

Each player who has cast a nonartifact spell this turn can't cast additional nonartifact spells.

Flash
Flying
If an opponent would search a library, that player searches the top four cards of that library instead.

, Sacrifice Tormod's Crypt: Exile all cards from target player's graveyard.