Mountain

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Kird Ape

This creature gets +1/+2 as long as you control a Forest.

Oliphaunt

Trample
Whenever this creature attacks, another target creature you control gets +2/+0 and gains trample until end of turn.
Mountaincycling {1} ({1}, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.)

Utopia Sprawl

Enchant Forest
As this Aura enters, choose a color.
Whenever enchanted Forest is tapped for mana, its controller adds an additional one mana of the chosen color.

Ash Barrens

{T}: Add {C}.
Basic landcycling {1} ({1}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

Annoyed Altisaur

Reach, trample
Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Radiant Grove

({T}: Add {G} or {W}.)
This land enters tapped.

Wooded Ridgeline

({T}: Add {R} or {G}.)
This land enters tapped.

Forest

Meria's Outrider

Reach
Domain — When this creature enters, it deals damage to each opponent equal to the number of basic land types among lands you control.

Sacred Peaks

({T}: Add {R} or {W}.)
This land enters tapped.

Exploding Borders

Domain — Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. Exploding Borders deals X damage to target player or planeswalker, where X is the number of basic land types among lands you control.

Generous Ent

Reach
When this creature enters, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.")
Forestcycling {1} ({1}, Discard this card: Search your library for a Forest card, reveal it, put it into your hand, then shuffle.)

Geothermal Bog

({T}: Add {B} or {R}.)
This land enters tapped.

Nylea's Presence

Enchant land
When this Aura enters, draw a card.
Enchanted land is every basic land type in addition to its other types.

Molten Tributary

({T}: Add {U} or {R}.)
This land enters tapped.

Haunted Mire

({T}: Add {B} or {G}.)
This land enters tapped.

Tribal Flames

Domain — Tribal Flames deals X damage to any target, where X is the number of basic land types among lands you control.

Wild Nacatl

This creature gets +1/+1 as long as you control a Mountain.
This creature gets +1/+1 as long as you control a Plains.