General Jarkeld

: Choose two target blocked attacking creatures. If each of those creatures could be blocked by all creatures that the other is blocked by, each creature that’s blocking exactly one of those attacking creatures stops blocking it and is blocking the other attacking creature. Activate this ability only during the declare blockers step.

Jokulhaups

Destroy all artifacts, creatures, and lands. They can’t be regenerated.

Despotic Scepter

: Destroy target permanent you own. It can’t be regenerated.

Shyft

At the beginning of your upkeep, you may have Shyft become the color or colors of your choice. (This effect lasts indefinitely.)

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.

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.

Red Elemental Blast

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

Karma

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

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.

Cursed Rack

As Cursed Rack enters the battlefield, choose an opponent.
The chosen player’s maximum hand size is four.

Wall of Fire

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

Blue Elemental Blast

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