Impending Disaster

At the beginning of your upkeep, if there are seven or more lands on the battlefield, sacrifice this enchantment and destroy all lands.

Selesnya Signet

Pearl Medallion

White spells you cast cost {1} less to cast.

Mountain

Worldfire

Exile all permanents. Exile all cards from all hands and graveyards. Each player's life total becomes 1.

Armageddon

Paraselene

Destroy all enchantments. You gain 1 life for each enchantment destroyed this way.

Farewell

Choose one or more —
• Exile all artifacts.
• Exile all creatures.
• Exile all enchantments.
• Exile all graveyards.

Final Act

Choose one or more —
• Destroy all creatures.
• Destroy all planeswalkers.
• Destroy all battles.
• Exile all graveyards.
• Each opponent loses all counters.

Boros Signet

Back to Nature

Marble Diamond

This artifact enters tapped.
{T}: Add {W}.

Ruby Medallion

Red spells you cast cost {1} less to cast.

Breaking Point

Any player may have Breaking Point deal 6 damage to them. If no one does, destroy all creatures. Creatures destroyed this way can't be regenerated.

Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Doomskar

Destroy all creatures.
Foretell {1}{W}{W} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Tanglepool Bridge

This land enters tapped.
Indestructible
{T}: Add {G} or {U}.

Supreme Verdict

This spell can't be countered.
Destroy all creatures.

Charcoal Diamond

This artifact enters tapped.
{T}: Add {B}.

Azorius Signet

Ravages of War

Kirtar's Wrath

Destroy all creatures. They can't be regenerated.
Threshold — If seven or more cards are in your graveyard, instead destroy all creatures, then create two 1/1 white Spirit creature tokens with flying. Creatures destroyed this way can't be regenerated.

Sublime Exhalation

Undaunted (This spell costs {1} less to cast for each opponent.)
Destroy all creatures.

Vanquish the Horde

This spell costs {1} less to cast for each creature on the battlefield.
Destroy all creatures.

Island

Devastation

Cleanfall

Bust

Boom

Destroy target land you control and target land you don't control.

Boom // Bust

Winds of Rath

Destroy all creatures that aren't enchanted. They can't be regenerated.

Starfall Invocation

Gift a card (You may promise an opponent a gift as you cast this spell. If you do, they draw a card before its other effects.)
Destroy all creatures. If the gift was promised, return a creature card put into your graveyard this way to the battlefield under your control.

Izzet Signet

Forest

Anzrag's Rampage

Destroy all artifacts you don't control, then exile the top X cards of your library, where X is the number of artifacts that were put into graveyards from the battlefield this turn. You may put a creature card exiled this way onto the battlefield. It gains haste. Return it to your hand at the beginning of the next end step.

Gruul Signet

Drossforge Bridge

This land enters tapped.
Indestructible
{T}: Add {B} or {R}.

Jokulhaups

Destroy all artifacts, creatures, and lands. They can't be regenerated.

Damnation

Destroy all creatures. They can't be regenerated.

Goldmire Bridge

This land enters tapped.
Indestructible
{T}: Add {W} or {B}.

Child of Alara

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

Final Showdown

Spree (Choose one or more additional costs.)
+ {1} — All creatures lose all abilities until end of turn.
+ {1} — Choose a creature you control. It gains indestructible until end of turn.
+ {3}{W}{W} — Destroy all creatures.

Cleansing Nova

Choose one —
• Destroy all creatures.
• Destroy all artifacts and enchantments.

Kaya's Wrath

Destroy all creatures. You gain life equal to the number of creatures you controlled that were destroyed this way.

Day of Judgment

Cascading Cataracts

Indestructible
{T}: Add {C}.
{5}, {T}: Add five mana in any combination of colors.

Phyrexian Rebirth

Destroy all creatures, then create an X/X colorless Phyrexian Horror artifact creature token, where X is the number of creatures destroyed this way.

Rakdos Signet

Myojin of Infinite Rage

Myojin of Infinite Rage enters with a divinity counter on it if you cast it from your hand.
Myojin of Infinite Rage has indestructible as long as it has a divinity counter on it.
Remove a divinity counter from Myojin of Infinite Rage: Destroy all lands.

Swamp

Razortide Bridge

This land enters tapped.
Indestructible
{T}: Add {W} or {U}.

Multani's Decree

Destroy all enchantments. You gain 2 life for each enchantment destroyed this way.

Fall of the Thran

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Destroy all lands.
II, III — Each player returns two land cards from their graveyard to the battlefield.

Moss Diamond

This artifact enters tapped.
{T}: Add {G}.

Slagwoods Bridge

This land enters tapped.
Indestructible
{T}: Add {R} or {G}.

Thornglint Bridge

This land enters tapped.
Indestructible
{T}: Add {G} or {W}.

Fire Diamond

This artifact enters tapped.
{T}: Add {R}.

Golgari Signet

Desolation Angel

Kicker {W}{W} (You may pay an additional {W}{W} as you cast this spell.)
Flying
When this creature enters, destroy all lands you control. If it was kicked, destroy all lands instead.

Blood Money

Destroy all creatures. For each nontoken creature destroyed this way, you create a tapped Treasure token.

Sol Ring

Expel the Interlopers

Choose a number between 0 and 10. Destroy all creatures with power greater than or equal to the chosen number.

Rustvale Bridge

This land enters tapped.
Indestructible
{T}: Add {R} or {W}.

Bearer of the Heavens

When this creature dies, destroy all permanents at the beginning of the next end step.

Silverbluff Bridge

This land enters tapped.
Indestructible
{T}: Add {U} or {R}.

Thran Dynamo

Mistvault Bridge

This land enters tapped.
Indestructible
{T}: Add {U} or {B}.

Obliterate

This spell can't be countered.
Destroy all artifacts, creatures, and lands. They can't be regenerated.

Blasphemous Act

This spell costs {1} less to cast for each creature on the battlefield.
Blasphemous Act deals 13 damage to each creature.

Jet Medallion

Black spells you cast cost {1} less to cast.

Plains

Citywide Bust

Destroy all creatures with toughness 4 or greater.

Decree of Annihilation

Exile all artifacts, creatures, and lands from the battlefield, all cards from all graveyards, and all cards from all hands.
Cycling {5}{R}{R} ({5}{R}{R}, Discard this card: Draw a card.)
When you cycle this card, destroy all lands.

Depopulate

Each player who controls a multicolored creature draws a card. Then destroy all creatures.

Orzhov Signet

Darksteel Citadel

Bane of Progress

When this creature enters, destroy all artifacts and enchantments. Put a +1/+1 counter on this creature for each permanent destroyed this way.

Austere Command

Choose two —
• Destroy all artifacts.
• Destroy all enchantments.
• Destroy all creatures with mana value 3 or less.
• Destroy all creatures with mana value 4 or greater.

Catastrophe

Destroy all lands or all creatures. Creatures destroyed this way can't be regenerated.

Wrath of God

Vandalblast

Destroy target artifact you don't control.
Overload {4}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Bend or Break

Each player separates all nontoken lands they control into two piles. For each player, one of their piles is chosen by one of their opponents of their choice. Destroy all lands in the chosen piles. Tap all lands in the other piles.

Realm Razer

When this creature enters, exile all lands.
When this creature leaves the battlefield, return the exiled cards to the battlefield tapped under their owners' control.