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From $0.75
'{T}: Add {C}.
{1}, {T}, Sacrifice this land: Search your library for a basic Swamp, Mountain, or Forest card, put it onto the battlefield tapped, then shuffle.
$0.25
When this land enters, sacrifice it. When you do, search your library for a basic Swamp, Mountain, or Forest card, put it onto the battlefield tapped, then shuffle and you...
From $19.00
{T}: Add {R}.
{T}: Add {U}. Activate only if you control an Island or a Mountain.
From $0.25
'[+2]: Search your library for a basic Mountain card, reveal it, put it into your hand, then shuffle. [−3]: Koth deals damage to target creature equal to the number of...
From $9.50
'This land enters tapped unless you control a Mountain. {T}: Add {R}. {R}, {T}, Exert this land: Add {R}{R}. If that mana is spent on a creature spell, it gains...
From $6.75
'This land enters tapped unless you control a Mountain or a Plains.
{T}: Add {R} or {W}.
From $13.25
{T}: Add {W}.
{T}: Add {R}. Activate only if you control a Mountain or a Plains.
From $16.50
'This land enters tapped unless you control a Mountain. {T}: Add {R}. {R}, {T}, Exert this land: Add {R}{R}. If that mana is spent on a creature spell, it gains...
From $0.25
'This land enters tapped unless you control a Mountain or a Forest.
{T}: Add {R} or {G}.
From $7.25
This land enters tapped unless you control a Mountain or a Forest.
{T}: Add {U}.
{U}, {T}: The next spell you cast this turn can't be countered.
From $0.75
'Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.
From $1.50
'As this land enters, you may reveal an Island or Mountain card from your hand. If you don't, this land enters tapped.
{T}: Add {U} or {R}.