Nature's Lore

Search your library for a Forest card, put that card onto the battlefield, then shuffle.

Worldly Tutor

Search your library for a creature card, reveal it, then shuffle and put the card on top.

Cabal Coffers

{2}, {T}: Add {B} for each Swamp you control.

Reclamation Sage

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

Oblivion Crown

Flash (You may cast this spell any time you could cast an instant.)
Enchant creature
Enchanted creature has "Discard a card: This creature gets +1/+1 until end of turn."

Skyshroud Claim

Search your library for up to two Forest cards, put them onto the battlefield, then shuffle.

Elves of Deep Shadow

{T}: Add {B}. This creature deals 1 damage to you.

Rain of Filth

Until end of turn, lands you control gain "Sacrifice this land: Add {B}."

Dread Return

Return target creature card from your graveyard to the battlefield.
Flashback—Sacrifice three creatures. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Urborg, Tomb of Yawgmoth

Each land is a Swamp in addition to its other land types.

Damnation

Destroy all creatures. They can't be regenerated.

Persist

Return target nonlegendary creature card from your graveyard to the battlefield with a -1/-1 counter on it.

Yavimaya, Cradle of Growth

Each land is a Forest in addition to its other land types.

Crucible of Worlds

Burgeoning

Whenever an opponent plays a land, you may put a land card from your hand onto the battlefield.