Demonic Hordes

: Destroy target land.
At the beginning of your upkeep, unless you pay , tap Demonic Hordes and sacrifice a land of an opponent’s choice.

Demonic Hordes

: Destroy target land.
At the beginning of your upkeep, unless you pay , tap Demonic Hordes and sacrifice a land of an opponent’s choice.

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.

Conversion

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

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.)

Camouflage

Cast this spell only during your declare attackers step.
This turn, instead of declaring blockers, each defending player chooses any number of creatures they control and divides them into a number of piles equal to the number of attacking creatures for whom that player is the defending player. Creatures those players control that can block additional creatures may likewise be put into additional piles. Assign each pile to a different one of those attacking creatures at random. Each creature in a pile that can block the creature that pile is assigned to does so. (Piles can be empty.)

Basalt Monolith

Basalt Monolith doesn’t untap during your untap step.
: Add .
: Untap Basalt Monolith.

Word of Command

Look at target opponent’s hand and choose a card from it. You control that player until Word of Command finishes resolving. The player plays that card if able. While doing so, the player can activate mana abilities only if they’re from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player controls and/or to play that card. If the chosen card is cast as a spell, you control the player while that spell is resolving.

Goblin King

Other Goblins get +1/+1 and have mountainwalk.

Smoke

Players can’t untap more than one creature during their untap steps.

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.