Bereavement

Whenever a green creature dies, its controller discards a card.

Hibernation

Return all green permanents to their owners' hands.

Shifting Sky

As Shifting Sky enters, choose a color.
All nonland permanents are the chosen color.

Karma

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

Stern Judge

{T}: Each player loses 1 life for each Swamp they control.

Major Teroh

Flying
{3}{W}{W}, Sacrifice Major Teroh: Exile all black creatures.

Sol Ring

Ricochet Trap

If an opponent cast a blue spell this turn, you may pay {R} rather than pay this spell's mana cost.
Change the target of target spell with a single target.

Stonehorn Dignitary

When Stonehorn Dignitary enters, target opponent skips their next combat phase.

Cultivate

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Drought

At the beginning of your upkeep, sacrifice Drought unless you pay {W}{W}.
Spells cost an additional "Sacrifice a Swamp" to cast for each black mana symbol in their mana costs.
Activated abilities cost an additional "Sacrifice a Swamp" to activate for each black mana symbol in their activation costs.

Telepathy

Your opponents play with their hands revealed.

Privileged Position

({G/W} can be paid with either {G} or {W}.)
Other permanents you control have hexproof. (They can't be the targets of spells or abilities your opponents control.)

Chromatic Lantern

Lands you control have "{T}: Add one mana of any color."
{T}: Add one mana of any color.

Insight

Whenever an opponent casts a green spell, you draw a card.

Light of Day

Llawan, Cephalid Empress

When Llawan, Cephalid Empress enters, return all blue creatures your opponents control to their owners' hands.
Your opponents can't cast blue creature spells.

Douse

Sterling Grove

Other enchantments you control have shroud. (They can't be the targets of spells or abilities.)
{1}, Sacrifice Sterling Grove: Search your library for an enchantment card, reveal it, then shuffle and put that card on top.

Northern Paladin

{W}{W}, {T}: Destroy target black permanent.

Paladin en-Vec

First strike, protection from black and from red (This creature deals combat damage before creatures without first strike. It can't be blocked, targeted, dealt damage, or enchanted by anything black or red.)

Perish

Destroy all green creatures. They can't be regenerated.

Mold Adder

Whenever an opponent casts a blue or black spell, you may put a +1/+1 counter on this creature.

Blind Seer

{1}{U}: Target spell or permanent becomes the color of your choice until end of turn.

Rampant Growth

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Child of Alara

Trample
When Child of Alara dies, destroy all nonland permanents. They can't be regenerated.

Absolute Grace

All creatures have protection from black.

Southern Paladin

{W}{W}, {T}: Destroy target red permanent.

Western Paladin

{B}{B}, {T}: Destroy target white creature.

Snake Pit

Whenever an opponent casts a blue or black spell, you may create a 1/1 green Snake creature token.

Irini Sengir

Green enchantment spells and white enchantment spells cost {2} more to cast.

Deathmark

Rune-Tail's Essence

Prevent all damage that would be dealt to creatures you control.

Rune-Tail, Kitsune Ascendant

When you have 30 or more life, flip Rune-Tail, Kitsune Ascendant.

Rune-Tail, Kitsune Ascendant // Rune-Tail's Essence

Celestial Dawn

Lands you control are Plains.
Nonland permanents you control are white. The same is true for spells you control and nonland cards you own that aren't on the battlefield.
You may spend white mana as though it were mana of any color. You may spend other mana only as though it were colorless mana.

Harsh Judgment

As Harsh Judgment enters, choose a color.
If an instant or sorcery spell of the chosen color would deal damage to you, it deals that damage to its controller instead.

Oversoul of Dusk

Protection from blue, from black, and from red

Mindsparker

First strike (This creature deals combat damage before creatures without first strike.)
Whenever an opponent casts a white or blue instant or sorcery spell, this creature deals 2 damage to that player.

Lifetap

Whenever a Forest an opponent controls becomes tapped, you gain 1 life.

Flooded Woodlands

Green creatures can't attack unless their controller sacrifices a land of their choice for each green creature they control that's attacking. (This cost is paid as attackers are declared.)

Chaotic Backlash

Chaotic Backlash deals damage to target player equal to twice the number of white and/or blue permanents they control.

Chill

Spellbane Centaur

Creatures you control can't be the targets of blue spells or abilities from blue sources.

Essence Leak

Enchant permanent
As long as enchanted permanent is red or green, it has "At the beginning of your upkeep, sacrifice this permanent unless you pay its mana cost."

Eastern Paladin

{B}{B}, {T}: Destroy target green creature.

Active Volcano

Choose one —
• Destroy target blue permanent.
• Return target Island to its owner's hand.

Nature's Ruin

Grand Arbiter Augustin IV

White spells you cast cost {1} less to cast.
Blue spells you cast cost {1} less to cast.
Spells your opponents cast cost {1} more to cast.

Shattering Spree

Replicate {R} (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)
Destroy target artifact.

Magus of the Tabernacle

All creatures have "At the beginning of your upkeep, sacrifice this creature unless you pay {1}."

Hindering Light

Counter target spell that targets you or a permanent you control.
Draw a card.

High Seas

Red creature spells and green creature spells cost {1} more to cast.

Day of Judgment

Angry Mob

Trample
During your turn, Angry Mob's power and toughness are each equal to 2 plus the number of Swamps your opponents control. During turns other than yours, Angry Mob's power and toughness are each 2.