Gruul Turf

This land enters tapped.
When this land enters, return a land you control to its owner's hand.
{T}: Add {R}{G}.

Rockfall Vale

This land enters tapped unless you control two or more other lands.
{T}: Add {R} or {G}.

This land enters tapped.
When this land enters, sacrifice it unless you return an untapped Forest you control to its owner's hand.
{T}: Add {C}{G}.

({T}: Add {R} or {G}.)
This land enters tapped unless you control two or more basic lands.

{T}: Add {C}.
{T}: Add {R} or {G}. This land deals 1 damage to you.

This land enters tapped unless you have two or more opponents.
{T}: Add {R} or {G}.

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

{T}: Add {C}.
{R/G}, {T}: Add {R}{R}, {R}{G}, or {G}{G}.

{T}: Add {R}.
{T}: Add {G}. Activate only if you control a Mountain or a Forest.

{T}: Add {C}.
{T}: Add {R} or {G}. Each opponent gains 1 life.

({T}: Add {R} or {G}.)
As this land enters, you may pay 2 life. If you don't, it enters tapped.

This land enters tapped unless you control a Mountain or a Forest.
{T}: Add {R} or {G}.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Mountain or Forest card, put it onto the battlefield, then shuffle.

As this land enters, you may reveal a Mountain or Forest card from your hand. If you don't, this land enters tapped.
{T}: Add {R} or {G}.

This land enters tapped.
When this land enters, sacrifice it unless you return an untapped Mountain you control to its owner's hand.
{T}: Add {C}{R}.