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$0.25
'As this land enters, you may reveal a Swamp or Mountain card from your hand. If you don't, this land enters tapped.
{T}: Add {B} or {R}.
From $6.75
'({T}: Add {R} or {G}.)
As this land enters, you may pay 2 life. If you don't, it enters tapped.
From $5.75
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.
$0.25
Reach, trample When Zog enters, target creature can't block this turn. Mountaincycling {2} ({2}, Discard this card: Search your library for a Mountain card, reveal it, put it into your...
$0.25
Pokémon - Stage 1 HP: 140 Power Gem 40: Fighting Mountain Drop 70+: Colorless, Colorless, Colorless | If a Stadium is in play, this attack does 70 more damage. Weakness:...
From $6.50
({T}: Add {B} or {R}.)
As this land enters, you may pay 2 life. If you don't, it enters tapped.
From $0.25
'{T}: Add {C}.
{1}, {T}, Sacrifice this land: Search your library for a basic Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.
From $5.75
'This land enters tapped unless you control a Mountain or a Forest.
{T}: Add {R} or {G}.
From $4.75
'{T}: Add {R}.
{T}: Add {G}. Activate only if you control a Mountain or a Forest.
From $6.25
'{T}: Add {R}.
{T}: Add {G}. Activate only if you control a Mountain or a Forest.
From $7.25
'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...