Johtull Wurm

Whenever Johtull Wurm becomes blocked, it gets -2/-1 until end of turn for each creature blocking it beyond the first.

Whiptail Wurm

Jungle Wurm

Whenever Jungle Wurm becomes blocked, it gets -1/-1 until end of turn for each creature blocking it beyond the first.

Conch Horn

{1}, {T}, Sacrifice Conch Horn: Draw two cards, then put a card from your hand on top of your library.

Undergrowth

As an additional cost to cast this spell, you may pay {2}{R}.
Prevent all combat damage that would be dealt this turn. If this spell's additional cost was paid, this effect doesn't affect combat damage that would be dealt by red creatures.

Yavimaya Ants

Trample, haste
Cumulative upkeep {G}{G} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Avoid Fate

Counter target instant or Aura spell that targets a permanent you control.

Fruition

You gain 1 life for each Forest on the battlefield.

Spined Wurm

Prevent all combat damage that would be dealt this turn.

Scaled Wurm

Call of the Wild

{2}{G}{G}: Reveal the top card of your library. If it's a creature card, put it onto the battlefield. Otherwise, put it into your graveyard.

Crash of Rhinos

Mountain Valley

Mountain Valley enters tapped.
{T}, Sacrifice Mountain Valley: Search your library for a Mountain or Forest card, put it onto the battlefield, then shuffle.

Veteran Explorer

When Veteran Explorer dies, each player may search their library for up to two basic land cards, put them onto the battlefield, then shuffle.

Nature's Lore

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