Telepathy

Your opponents play with their hands revealed.

Opposition

Tap an untapped creature you control: Tap target artifact, creature, or land.

Swamp

Sol Ring

Baleful Strix

Flying, deathtouch
When Baleful Strix enters, draw a card.

Disruptive Pitmage

{T}: Counter target spell unless its controller pays {1}.
Morph {U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Sunken Hollow

({T}: Add {U} or {B}.)
Sunken Hollow enters tapped unless you control two or more basic lands.

Smokestack

At the beginning of your upkeep, you may put a soot counter on Smokestack.
At the beginning of each player's upkeep, that player sacrifices a permanent for each soot counter on Smokestack.

Maze of Ith

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

Mundungu

{T}: Counter target spell unless its controller pays {1} and 1 life.

Thran Dynamo

Wall of Souls

Defender (This creature can't attack.)
Whenever Wall of Souls is dealt combat damage, it deals that much damage to target opponent or planeswalker.

Island

Mana Leak

Counter target spell unless its controller pays {3}.

Rhystic Study

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

Royal Assassin

Jester's Cap

{2}, {T}, Sacrifice Jester's Cap: Search target player's library for three cards and exile them. Then that player shuffles.

Capsize

Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.)
Return target permanent to its owner's hand.