Counterspell

Serendib Efreet

Flying
At the beginning of your upkeep, this creature deals 1 damage to you.

Mox Sapphire

Island

Plains

Ancestral Recall

Chaos Orb

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

City of Brass

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

City in a Bottle

Whenever one or more other nontoken permanents with a name originally printed in the Arabian Nights expansion are on the battlefield, their controllers sacrifice them.
Players can't cast spells or play lands with a name originally printed in the Arabian Nights expansion.

Disenchant

Power Sink

Counter target spell unless its controller pays {X}. If that player doesn't, they tap all lands with mana abilities they control and lose all unspent mana.

Time Walk

Circle of Protection: Red

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

Savannah Lions

Divine Offering

Destroy target artifact. You gain life equal to its mana value.

Mana Drain

Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.

Mox Jet

Swords to Plowshares

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

Control Magic

Enchant creature
You control enchanted creature.

Timetwister

Each player shuffles their hand and graveyard into their library, then draws seven cards. (Then put Timetwister into its owner's graveyard.)

Blue Elemental Blast

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

Mox Ruby

Underground Sea

Strip Mine

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

Tundra

Psionic Blast

Psionic Blast deals 4 damage to any target and 2 damage to you.

Mox Emerald

Scrubland

Braingeyser

Mind Twist

Target player discards X cards at random.

Black Vise

As this artifact enters, choose an opponent.
At the beginning of the chosen player's upkeep, this artifact deals X damage to that player, where X is the number of cards in their hand minus 4.

Mishra's Factory

{T}: Add {C}.
{1}: This land 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.

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.

Black Lotus

{T}, Sacrifice this artifact: Add three mana of any one color.

Energy Flux

All artifacts have "At the beginning of your upkeep, sacrifice this artifact unless you pay {2}."

Serra Angel

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

Library of Alexandria

{T}: Add {C}.
{T}: Draw a card. Activate only if you have exactly seven cards in hand.

Maze of Ith

{T}: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn.