Unstable Frontier

{T}: Add {C}.
{T}: Target land you control becomes the basic land type of your choice until end of turn.

Rainbow Vale

{T}: Add one mana of any color. An opponent gains control of this land at the beginning of the next end step.

Wellspring

Enchant land
When this Aura enters, gain control of enchanted land until end of turn.
At the beginning of your upkeep, untap enchanted land. You gain control of that land until end of turn.

Contested War Zone

Whenever a creature deals combat damage to you, that creature's controller gains control of this land.
{T}: Add {C}.
{1}, {T}: Attacking creatures get +1/+0 until end of turn.

Rubble Reading

Wayward Guide-Beast

Trample, haste
Whenever this creature deals combat damage to a player, return a land you control to its owner's hand.

Orcish Squatters

Whenever this creature attacks and isn't blocked, you may gain control of target land defending player controls for as long as you control this creature. If you do, this creature assigns no combat damage this turn.

Verge Rangers

First strike
You may look at the top card of your library any time.
As long as an opponent controls more lands than you, you may play lands from the top of your library. (You can play a land this way only if you have an available land play remaining.)

Blessed Respite

Target player shuffles their graveyard into their library. Prevent all combat damage that would be dealt this turn.

Temple of the False God

{T}: Add {C}{C}. Activate only if you control five or more lands.

Fellwar Stone

{T}: Add one mana of any color that a land an opponent controls could produce.

Trespassing Souleater

{U/P}: This creature can't be blocked this turn. ({U/P} can be paid with either {U} or 2 life.)

Broken Bond

Destroy target artifact or enchantment. You may put a land card from your hand onto the battlefield.

Access Tunnel

{T}: Add {C}.
{3}, {T}: Target creature with power 3 or less can't be blocked this turn.

Cryptic Caves

{T}: Add {C}.
{1}, {T}, Sacrifice this land: Draw a card. Activate only if you control five or more lands.

Argothian Wurm

Trample
When this creature enters, any player may sacrifice a land of their choice. If a player does, put this creature on top of its owner's library.

Graceful Antelope

Plainswalk (This creature can't be blocked as long as defending player controls a Plains.)
Whenever this creature deals combat damage to a player, you may have target land become a Plains until this creature leaves the battlefield.

Introduction to Prophecy

Avatar of Fury

If an opponent controls seven or more lands, this spell costs {6} less to cast.
Flying
{R}: This creature gets +1/+0 until end of turn.