Winter Orb

As long as Winter Orb is untapped, players can't untap more than one land during their untap steps.

Island

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.

Juggernaut

This creature attacks each combat if able.
This creature can't be blocked by Walls.

Crumble

Destroy target artifact. It can't be regenerated. That artifact's controller gains life equal to its mana value.

Regrowth

Return target card from your graveyard to your hand.

Black Vise

As Black Vise enters, 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.

Serendib Efreet

Flying
At the beginning of your upkeep, Serendib Efreet deals 1 damage to you.

Forest

Sol Ring

Llanowar Elves

Tranquility

Unsummon

Return target creature to its owner's hand.