Forest

Myr Landshaper

{T}: Target land becomes an artifact in addition to its other types until end of turn.

Splinter

Exile target artifact. Search its controller's graveyard, hand, and library for all cards with the same name as that artifact and exile them. Then that player shuffles.

Liquimetal Coating

{T}: Target permanent becomes an artifact in addition to its other types until end of turn.

Natural State

Destroy target artifact or enchantment with mana value 3 or less.

Viridian Shaman

When this creature enters, destroy target artifact.

Oxidize

Destroy target artifact. It can't be regenerated.

Field of Ruin

{T}: Add {C}.
{2}, {T}, Sacrifice this land: Destroy target nonbasic land an opponent controls. Each player searches their library for a basic land card, puts it onto the battlefield, then shuffles.

Tel-Jilad Justice

Destroy target artifact. Scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Treetop Village

This land enters tapped.
{T}: Add {G}.
{1}{G}: This land becomes a 3/3 green Ape creature with trample until end of turn. It's still a land. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Viridian Revel

Whenever an artifact is put into an opponent's graveyard from the battlefield, you may draw a card.

Reclamation Sage

When this creature enters, you may destroy target artifact or enchantment.

Planar Portal

{6}, {T}: Search your library for a card, put that card into your hand, then shuffle.