Tranquility

Ice Storm

Fireball

This spell costs {1} more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

Regrowth

Return target card from your graveyard to your hand.

Mountain

Terror

Destroy target nonartifact, nonblack creature. It can't be regenerated.

Swamp

Mishra's Factory

{T}: Add {C}.
{1}: Mishra's Factory becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land.
{T}: Target Assembly-Worker creature gets +1/+1 until end of turn.

Strip Mine

{T}: Add {C}.
{T}, Sacrifice Strip Mine: Destroy target land.

Birds of Paradise

Shatterstorm

Destroy all artifacts. They can't be regenerated.

Pendelhaven

{T}: Add {G}.
{T}: Target 1/1 creature gets +1/+2 until end of turn.

Sol Ring

Elves of Deep Shadow

{T}: Add {B}. Elves of Deep Shadow deals 1 damage to you.

Stone Rain

Scavenger Folk

{G}, {T}, Sacrifice Scavenger Folk: Destroy target artifact.

Demonic Tutor

Search your library for a card, put that card into your hand, then shuffle.

Sinkhole

Llanowar Elves

City of Brass

Whenever City of Brass becomes tapped, it deals 1 damage to you.
{T}: Add one mana of any color.