Fellwar Stone

{T}: Add one mana of any color that a land an opponent controls could produce.

City of Brass

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

Chaos Orb

{1}, {T}: If Chaos Orb is on the battlefield, flip Chaos Orb onto the battlefield from a height of at least one foot. If Chaos Orb turns over completely at least once during the flip, destroy all nontoken permanents it touches. Then destroy Chaos Orb.

Earthquake

Earthquake deals X damage to each creature without flying and each player.

Disenchant

Disrupting Scepter

{3}, {T}: Target player discards a card. Activate only during your turn.

Recall

Discard X cards, then return a card from your graveyard to your hand for each card discarded this way. Exile Recall.

Birds of Paradise

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Serra Angel

Flying
Vigilance (Attacking doesn't cause this creature to tap.)

Circle of Protection: Red

{1}: The next time a red source of your choice would deal damage to you this turn, prevent that damage.

Blue Elemental Blast

Choose one —
• Counter target red spell.
• Destroy target red permanent.

Strip Mine

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

Balance

Each player chooses a number of lands they control equal to the number of lands controlled by the player who controls the fewest, then sacrifices the rest. Players discard cards and sacrifice creatures the same way.

Ivory Tower

At the beginning of your upkeep, you gain X life, where X is the number of cards in your hand minus 4.

Jalum Tome

{2}, {T}: Draw a card, then discard a card.

Mountain

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.

Shivan Dragon

Flying
{R}: This creature gets +1/+0 until end of turn.

Forest

Swords to Plowshares

Exile target creature. Its controller gains life equal to its power.

Counterspell

Tormod's Crypt

{T}, Sacrifice Tormod's Crypt: Exile target player's graveyard.

Braingeyser

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.

Red Elemental Blast

Choose one —
• Counter target blue spell.
• Destroy target blue permanent.

The Hive

{5}, {T}: Create a 1/1 colorless Insect artifact creature token with flying named Wasp. (It can't be blocked except by creatures with flying or reach.)