Crash
{2}{R}
Instant
You may sacrifice a Mountain rather than pay ~this~'s mana cost.
Destroy target artifact.
Downhill Charge
{2}{R}
Instant
You may sacrifice a Mountain rather than pay ~this~'s mana cost.
Target creature gets +X/+0 until end of turn, where X is the number of Mountains you control.
Thunderclap
{2}{R}
Instant
You may sacrifice a Mountain rather than pay ~this~'s mana cost.
~this~ deals 3 damage to target creature.