Constant Mists

Buyback—Sacrifice a land. (You may sacrifice a land in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.)
Prevent all combat damage that would be dealt this turn.

Command of Unsummoning

Cast this spell only during the declare attackers step and only if you've been attacked this step.
Return one or two target attacking creatures to their owner's hand.

Unlikely Alliance

{1}{W}: Target nonattacking, nonblocking creature gets +0/+2 until end of turn.

Farrelite Priest

{1}: Add {W}. If this ability has been activated four or more times this turn, sacrifice this creature at the beginning of the next end step.

Orcish Lumberjack

{T}, Sacrifice a Forest: Add three mana in any combination of {R} and/or {G}.

Goblin Chirurgeon

Sacrifice a Goblin: Regenerate target creature.

Anarchy

Breath of Dreams

Cumulative upkeep {U} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
Green creatures have "Cumulative upkeep {1}."

Snowfall

Cumulative upkeep {U} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
Whenever an Island is tapped for mana, its controller may add an additional {U}. If that Island is snow, its controller may add an additional {U}{U} instead. Spend this mana only to pay cumulative upkeep costs.

Master Decoy

Greed

Imposing Visage

Enchant creature
Enchanted creature has menace. (It can't be blocked except by two or more creatures.)

Song of the Dryads

Enchant permanent
Enchanted permanent is a colorless Forest land.

Humility

All creatures lose all abilities and have base power and toughness 1/1.

Redwood Treefolk

Conch Horn

{1}, {T}, Sacrifice this artifact: Draw two cards, then put a card from your hand on top of your library.

Killer Bees

Flying
{G}: This creature gets +1/+1 until end of turn.

Mishra's Factory

{T}: Add {C}.
{1}: This land becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land.
{T}: Target Assembly-Worker creature gets +1/+1 until end of turn.

Sunstone

{2}, Sacrifice a snow land: Prevent all combat damage that would be dealt this turn.

Recycle

Skip your draw step.
Whenever you play a card, draw a card.
Your maximum hand size is two.

Goblin King

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

Orcish Librarian

{R}, {T}: Look at the top eight cards of your library. Exile four of them at random, then put the rest on top of your library in any order.

Fyndhorn Pollen

Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
All creatures get -1/-0.
{1}{G}: All creatures get -1/-0 until end of turn.

Taunt

During target player's next turn, creatures that player controls attack you if able.

Bargain

Target opponent draws a card.
You gain 7 life.

Apathy

Enchant creature
Enchanted creature doesn't untap during its controller's untap step.
At the beginning of the upkeep of enchanted creature's controller, that player may discard a card at random. If the player does, untap that creature.

Ramirez DePietro

Lure

Enchant creature
All creatures able to block enchanted creature do so.

Frog Tongue

Enchant creature
When this Aura enters, draw a card.
Enchanted creature has reach. (It can block creatures with flying.)

Icatian Scout

{1}, {T}: Target creature gains first strike until end of turn.

Pit Imp

Flying
{B}: This creature gets +1/+0 until end of turn. Activate no more than twice each turn.

Sulfurous Springs

{T}: Add {C}.
{T}: Add {B} or {R}. This land deals 1 damage to you.

Presence of the Master

Whenever a player casts an enchantment spell, counter it.

Tidal Surge

Tap up to three target creatures without flying.

Goblin Digging Team

{T}, Sacrifice this creature: Destroy target Wall.

Chaos Warp

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

Basal Thrull

{T}, Sacrifice this creature: Add {B}{B}.

White Scarab

Enchant creature
Enchanted creature can't be blocked by white creatures.
Enchanted creature gets +2/+2 as long as an opponent controls a white permanent.

Runed Arch

This artifact enters tapped.
{X}, {T}, Sacrifice this artifact: X target creatures with power 2 or less can't be blocked this turn.

Cloud Pirates

Flying
This creature can block only creatures with flying.

Gaseous Form

Enchant creature
Prevent all combat damage that would be dealt to and dealt by enchanted creature.

Browse

{2}{U}{U}: Look at the top five cards of your library, put one of them into your hand, and exile the rest.

Prosperity

Sleight of Hand

Look at the top two cards of your library. Put one of them into your hand and the other on the bottom of your library.

Mirror Universe

{T}, Sacrifice this artifact: Exchange life totals with target opponent. Activate only during your upkeep.

Avoid Fate

Counter target instant or Aura spell that targets a permanent you control.

Infernal Darkness

Cumulative upkeep—Pay {B} and 1 life. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
If a land is tapped for mana, it produces {B} instead of any other type.

Goblin Bombardment

Sacrifice a creature: This enchantment deals 1 damage to any target.

Bee Sting

Cooperation

Enchant creature
Enchanted creature has banding. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding a player controls are blocking or being blocked by a creature, that player divides that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Dream Cache

Draw three cards, then put two cards from your hand both on top of your library or both on the bottom of your library.