Fog

Prevent all combat damage that would be dealt this turn.

Elder Spawn

At the beginning of your upkeep, unless you sacrifice an Island, sacrifice Elder Spawn and it deals 6 damage to you.
Elder Spawn can’t be blocked by red creatures.

Alchor’s Tomb

, : Target permanent you control becomes the color of your choice. (This effect lasts indefinitely.)

Shimian Night Stalker

, : All damage that would be dealt to you this turn by target attacking creature is dealt to Shimian Night Stalker instead.

Land Equilibrium

If an opponent who controls at least as many lands as you do would put a land onto the battlefield, that player instead puts that land onto the battlefield then sacrifices a land.

Boris Devilboon

, : Create a 1/1 black and red Demon creature token named Minor Demon.

Mold Demon

When Mold Demon enters the battlefield, sacrifice it unless you sacrifice two Swamps.

Evil Eye of Orms-by-Gore

Non-Eye creatures you control can’t attack.
Evil Eye of Orms-by-Gore can’t be blocked except by Walls.

Cosmic Horror

First strike
At the beginning of your upkeep, destroy Cosmic Horror unless you pay . If Cosmic Horror is destroyed this way, it deals 7 damage to you.

Conversion

At the beginning of your upkeep, sacrifice Conversion unless you pay .
All Mountains are Plains.

Crumble

Destroy target artifact. It can’t be regenerated. That artifact’s controller gains life equal to its converted mana cost.

Bottle of Suleiman

, Sacrifice Bottle of Suleiman: Flip a coin. If you win the flip, create a 5/5 colorless Djinn artifact creature token with flying. If you lose the flip, Bottle of Suleiman deals 5 damage to you.

Will-o’-the-Wisp

Flying (This creature can’t be blocked except by creatures with flying or reach.)
: Regenerate Will-o’-the-Wisp. (The next time this creature would be destroyed this turn, it isn’t. Instead tap it, remove all damage from it, and remove it from combat.)

Fog

Prevent all combat damage that would be dealt this turn.

Island Fish Jasconius

Island Fish Jasconius doesn’t untap during your untap step.
At the beginning of your upkeep, you may pay . If you do, untap Island Fish Jasconius.
Island Fish Jasconius can’t attack unless defending player controls an Island.
When you control no Islands, sacrifice Island Fish Jasconius.

Serendib Efreet

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

Cursed Land

Enchant land
At the beginning of the upkeep of enchanted land’s controller, Cursed Land deals 1 damage to that player.

Living Lands

All Forests are 1/1 creatures that are still lands.