Wall of Dust

Defender (This creature can’t attack.)
Whenever Wall of Dust blocks a creature, that creature can’t attack during its controller’s next turn.

Wall of Fire

Defender (This creature can’t attack.)
: Wall of Fire gets +1/+0 until end of turn.

Black Vise

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

Wall of Air

Defender, flying (This creature can’t attack, and it can block creatures with flying.)

Channel

Until end of turn, any time you could activate a mana ability, you may pay 1 life. If you do, add .

Wall of Dust

Defender (This creature can’t attack.)
Whenever Wall of Dust blocks a creature, that creature can’t attack during its controller’s next turn.

The Rack

As The Rack enters the battlefield, choose an opponent.
At the beginning of the chosen player’s upkeep, The Rack deals X damage to that player, where X is 3 minus the number of cards in their hand.

Power Sink

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

Channel

Until end of turn, any time you could activate a mana ability, you may pay 1 life. If you do, add .

Blue Elemental Blast

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

The Rack

As The Rack enters the battlefield, choose an opponent.
At the beginning of the chosen player’s upkeep, The Rack deals X damage to that player, where X is 3 minus the number of cards in their hand.

Karma

At the beginning of each player’s upkeep, Karma deals damage to that player equal to the number of Swamps they control.

Wall of Fire

Defender (This creature can’t attack.)
: Wall of Fire gets +1/+0 until end of turn.

Wall of Air

Defender, flying (This creature can’t attack, and it can block creatures with flying.)

Black Vise

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

Red Elemental Blast

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

Wall of Water

Defender (This creature can’t attack.)
: Wall of Water gets +1/+0 until end of turn.