You may have Vesuvan Doppelganger enter as a copy of any creature on the battlefield, except it doesn't copy that creature's color and it has "At the beginning of your upkeep, you may have this creature become a copy of target creature, except it doesn't copy that creature's color and it has this ability."
Destroy X target Mountains. Volcanic Eruption deals damage to each creature and each player equal to the number of Mountains put into a graveyard this way.
"And through the drifts the snowy cliffs Did send a dismal sheen: Nor shapes of men nor beasts we ken— The ice was all between." —Samuel Coleridge, "The Rime of the Ancient Mariner"
The ground itself lends its strength to these walls of living stone, which possess the stability of ancient mountains. These mighty bulwarks thwart ground-based troops, providing welcome relief for weary warriors who defend the land.
Defender {U}: Wall of Water gets +1/+0 until end of turn.
A deafening roar arose as the fury of an enormous vertical river supplanted our serenity. Eddies turned into whirling geysers, leveling everything in their path.
Orcish lumberjacks spent the night sharpening their blades and resting for a day of labor. They awoke to find that the forest had been making its own preparations.