Dust Bowl

{T}: Add {C}.
{3}, {T}, Sacrifice a land: Destroy target nonbasic land.

Elvish Lyrist

{G}, {T}, Sacrifice Elvish Lyrist: Destroy target enchantment.

Elvish Scrapper

{G}, {T}, Sacrifice Elvish Scrapper: Destroy target artifact.

Skyshroud Poacher

{3}, {T}: Search your library for an Elf permanent card, put it onto the battlefield, then shuffle.

Fyndhorn Elves

Naturalize

Rishadan Port

Uktabi Orangutan

When Uktabi Orangutan enters, destroy target artifact.

Priest of Titania

{T}: Add {G} for each Elf on the battlefield.

Mishra's Helix

Gaea's Cradle

{T}: Add {G} for each creature you control.

Tranquil Grove

{1}{G}{G}: Destroy all other enchantments.

Caller of the Claw

Flash
When Caller of the Claw enters, create a 2/2 green Bear creature token for each nontoken creature put into your graveyard from the battlefield this turn.

Deranged Hermit

Echo {3}{G}{G} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When Deranged Hermit enters, create four 1/1 green Squirrel creature tokens.
Squirrel creatures get +1/+1.

Rofellos, Llanowar Emissary

{T}: Add {G} for each Forest you control.

Triskelion

Triskelion enters with three +1/+1 counters on it.
Remove a +1/+1 counter from Triskelion: It deals 1 damage to any target.

Llanowar Elves

Masticore

At the beginning of your upkeep, sacrifice Masticore unless you discard a card.
{2}: Masticore deals 1 damage to target creature.
{2}: Regenerate Masticore.

Forest

Null Rod

Activated abilities of artifacts can't be activated.

Plow Under

Put two target lands on top of their owners' libraries.

Choke

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

Tangle Wire

Fading 4 (This artifact enters with four fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.)
At the beginning of each player's upkeep, that player taps an untapped artifact, creature, or land they control for each fade counter on Tangle Wire.

Tormod's Crypt

{T}, Sacrifice Tormod's Crypt: Exile target player's graveyard.

Winter Orb

As long as Winter Orb is untapped, players can't untap more than one land during their untap steps.