Destroy all Forests.

Damage that would reduce your life total to less than 1 reduces it to 1 instead.

Exile All Hallow's Eve with two scream counters on it.

At the beginning of your upkeep, if All Hallow's Eve is exiled with a scream counter on it, remove a scream counter from it. If there are no more scream counters on it, put it into your graveyard and each player returns all creature cards from their graveyard to the battlefield.

{W}{W}, {T}: Return target artifact card from your graveyard to your hand.

{T}: Draw two cards, then discard three cards.

Cast this spell only during combat before blockers are declared.

Target creature defending player controls can block any number of creatures this turn. It blocks each attacking creature this turn if able.

{2}{B}{R}, {T}: Create a 1/1 black and red Demon creature token named Minor Demon.

{X}, {T}: Untap X target lands.

{1}, {T}: If Chaos Orb is on the battlefield, flip Chaos Orb onto the battlefield from a height of at least one foot. If Chaos Orb turns over completely at least once during the flip, destroy all nontoken permanents it touches. Then destroy Chaos Orb.

Whenever one or more other nontoken permanents with a name originally printed in the Arabian Nights expansion are on the battlefield, their controllers sacrifice them.

Players can't cast spells or play lands with a name originally printed in the Arabian Nights expansion.

When you play another land, sacrifice City of Traitors.

{T}: Add {C}{C}.

{2}, {T}: Put a mire counter on target non-Swamp land. That land is a Swamp for as long as it has a mire counter on it. Activate only during your upkeep.

When Cyclopean Tomb is put into a graveyard from the battlefield, at the beginning of each of your upkeeps for the rest of the game, remove all mire counters from a land that a mire counter was put onto with Cyclopean Tomb but that a mire counter has not been removed from with Cyclopean Tomb.

Echo {3}{G}{G} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

When Deranged Hermit enters the battlefield, create four 1/1 green Squirrel creature tokens.

Squirrel creatures get +1/+1.

{T}, Sacrifice a creature: You gain life equal to the sacrificed creature's toughness.

Cast this spell only during combat before blockers are declared.

Untap target attacking creature and remove it from combat. Gain control of that creature until end of turn.

Divine Intervention enters the battlefield with two intervention counters on it.

At the beginning of your upkeep, remove an intervention counter from Divine Intervention.

When you remove the last intervention counter from Divine Intervention, the game is a draw.

At the beginning of your upkeep, destroy the creature with the least power. It can't be regenerated. If two or more creatures are tied for least power, you choose one of them.

When there are no creatures on the battlefield, sacrifice Drop of Honey.

Tap an untapped creature you control: Untap target basic land.

{T}: Add {C}.

{T}: Regenerate target Elephant.

Starting with you, each player may put a permanent card from their hand onto the battlefield. Repeat this process until no one puts a card onto the battlefield.

Players play with the top card of their libraries revealed.

Flying

If Firestorm Phoenix would die, return it to its owner's hand instead. Until that player's next turn, that player plays with that card revealed in their hand and can't play it.

{1}: The next time an unblocked creature of your choice would deal combat damage to you this turn, prevent all but 1 of that damage.

Gaea's Avenger's power and toughness are each equal to 1 plus the number of artifacts your opponents control.

Red creatures get +1/+1.

Whenever a Mountain is tapped for mana, its controller adds an additional {R}.

{1}, {T}: Each nontoken permanent with a name originally printed in the Antiquities expansion is sacrificed by its controller.

All creatures lose flying.

As long as Guardian Beast is untapped, noncreature artifacts you control can't be enchanted, they have indestructible, and other players can't gain control of them. This effect doesn't remove Auras already attached to those artifacts.

{T}: Target player discards a card at random. Activate only during your turn.

At the beginning of your upkeep, change Halfdane's base power and toughness to the power and toughness of target creature other than Halfdane until the end of your next upkeep.

When Hazezon Tamar enters the battlefield, create X 1/1 Sand Warrior creature tokens that are red, green, and white at the beginning of your next upkeep, where X is the number of lands you control at that time.

When Hazezon leaves the battlefield, exile all Sand Warriors.

Destroy all nonblack creatures. Hellfire deals X plus 3 damage to you, where X is the number of creatures that died this way.

{X}, {T}: Target opponent mills a card, then repeats this process until a creature card or X cards have been put into their graveyard this way, whichever comes first. If one or more creature cards were put into that graveyard this way, sacrifice Helm of Obedience and put one of them onto the battlefield under your control. X can't be 0.

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

Flying

{G}: Ifh-Bíff Efreet deals 1 damage to each creature with flying and each player. Any player may activate this ability.

{X}: You may choose a creature card in your hand whose mana cost could be paid by some amount of, or all of, the mana you spent on {X}. If you do, you may cast that card face down as a 2/2 creature spell without paying its mana cost. If the creature that spell becomes as it resolves has not been turned face up and would assign or deal damage, be dealt damage, or become tapped, instead it's turned face up and assigns or deals damage, is dealt damage, or becomes tapped. Activate only as a sorcery.

Whenever a player casts an instant spell, counter it unless that player pays {X}, where X is its mana value.

{T}: Target creature with flying has base power 0 until end of turn.

Green creatures you control get +0/+2.

At the beginning of your upkeep, Juzám Djinn deals 1 damage to you.

At the beginning of each end step, put a +1/+1 counter on Khabál Ghoul for each creature that died this turn.

{T}: Destroy target Djinn or Efreet.

{2}, {T}: Exile the top card of your library face down.

{0}: Sacrifice Knowledge Vault. If you do, discard your hand, then put all cards exiled with Knowledge Vault into their owner's hand.

When Knowledge Vault leaves the battlefield, put all cards exiled with Knowledge Vault into their owner's graveyard.

First strike

Other Kobold creatures you control have first strike.

{T}: Lady Caleria deals 3 damage to target attacking or blocking creature.

{W}{B}, {T}: Prevent all combat damage that would be dealt by target creature this turn.

If Lake of the Dead would enter the battlefield, sacrifice a Swamp instead. If you do, put Lake of the Dead onto the battlefield. If you don't, put it into its owner's graveyard.

{T}: Add {B}.

{T}, Sacrifice a Swamp: Add {B}{B}{B}{B}.

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.

{T}: Add {C}.

{T}: Draw a card. Activate only if you have exactly seven cards in hand.

As Lich enters the battlefield, you lose life equal to your life total.

You don't lose the game for having 0 or less life.

If you would gain life, draw that many cards instead.

Whenever you're dealt damage, sacrifice that many nontoken permanents. If you can't, you lose the game.

When Lich is put into a graveyard from the battlefield, you lose the game.

{4}, {T}: Put a matrix counter on target creature and that creature gains "Remove a matrix counter from this creature: Regenerate this creature." Activate only during your upkeep.

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

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

First strike; legendary landwalk (This creature can't be blocked as long as defending player controls a legendary land.)

If Lotus Vale would enter the battlefield, sacrifice two untapped lands instead. If you do, put Lotus Vale onto the battlefield. If you don't, put it into its owner's graveyard.

{T}: Add three mana of any one color.

Instant and enchantment spells you cast cost up to {2} less to cast.

{2}{G}{G}: Create a 1/1 green Wolf creature token named Wolves of the Hunt. It has "bands with other creatures named Wolves of the Hunt." (Any creatures named Wolves of the Hunt can attack in a band as long as at least one has "bands with other creatures named Wolves of the Hunt." Bands are blocked as a group. If at least two creatures named Wolves of the Hunt you control, one of which has "bands with other creatures named Wolves of the Hunt," are blocking or being blocked by the same creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

{T}, Sacrifice Memory Jar: Each player exiles all cards from their hand face down and draws seven cards. At the beginning of the next end step, each player discards their hand and returns to their hand each card they exiled this way.

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

{T}: Add {C}{C}{C}. Spend this mana only to cast artifact spells.

Creatures without flying can't attack.

If Mox Diamond would enter the battlefield, you may discard a land card instead. If you do, put Mox Diamond onto the battlefield. If you don't, put it into its owner's graveyard.

{T}: Add one mana of any color.

Look at the top three cards of target player's library, then put them back in any order. You may have that player shuffle.

Whenever a player casts a spell, counter it unless that player pays {3}.

{4}, {T}: For one spell this turn, you may spend mana as though it were mana of any type to pay that spell's mana cost. (Additional costs are still paid normally.)

{3}, {T}: The next time a source of your choice would deal damage to you this turn, that damage is dealt to target creature of an opponent's choice instead.

Activated abilities of artifacts can't be activated.

Flying

{G}{G}{G}, {T}: Target creature gains flying until end of turn.

Creature spells you cast cost up to {2} less to cast.

Enchant artifact

Enchanted artifact's activated abilities cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana.

You may choose not to untap Preacher during your untap step.

{T}: For as long as Preacher remains tapped, gain control of target creature of an opponent's choice they control.

{2}: Choose one --

• Destroy target Aura attached to a land.

• The next time target land would be destroyed this turn, remove all damage marked on it instead.

Whenever one or more creatures you control attack, each defending player divides all creatures without flying they control into a "left" pile and a "right" pile. Then, for each attacking creature you control, choose "left" or "right." That creature can't be blocked this combat except by creatures with flying and creatures in a pile with the chosen label.

{G}{W}{U}, {T}: Regenerate target creature.

{T}: Destroy target enchanted creature.

Rasputin Dreamweaver enters the battlefield with seven dream counters on it.

Remove a dream counter from Rasputin: Add {C}.

Remove a dream counter from Rasputin: Prevent the next 1 damage that would be dealt to Rasputin this turn.

At the beginning of your upkeep, if Rasputin started the turn untapped, put a dream counter on it.

Rasputin can't have more than seven dream counters on it.

All damage that would be dealt this turn by target sorcery spell is dealt to that spell's controller instead.

{3}, {T}: Counter target instant or Aura spell that targets a permanent you control.

{5}, {T}, Exile Ring of Ma'rûf: The next time you would draw a card this turn, instead put a card you own from outside the game into your hand.

{T}: Add {G} for each Forest you control.

At the beginning of your upkeep, you may pay {R}{R}{R}. If you don't, tap Rohgahh of Kher Keep and all creatures named Kobolds of Kher Keep, then an opponent gains control of them.

Creatures you control named Kobolds of Kher Keep get +2/+2.

Flying

At the beginning of your upkeep, sacrifice a land. If you sacrifice an Island this way, Serendib Djinn deals 3 damage to you.

When you control no lands, sacrifice Serendib Djinn.

{T}: Add {W} for each enchantment you control.

Players play a Magic subgame, using their libraries as their decks. Each player who doesn't win the subgame loses half their life, rounded up.

Return the top creature card of your graveyard to the battlefield. That creature gains haste until end of turn. Exile it at the beginning of the next end step.

{T}: Target attacking creature has base power 0 until end of turn.

{T}: Destroy target blue creature.

At the beginning of each player's upkeep, Storm World deals X damage to that player, where X is 4 minus the number of cards in their hand.

When Su-Chi dies, add {C}{C}{C}{C}.

{G}, Discard a creature card: Search your library for a creature card, reveal that card, put it into your hand, then shuffle.

You may choose not to untap Tawnos's Coffin during your untap step.

{3}, {T}: Exile target creature and all Auras attached to it. Note the number and kind of counters that were on that creature. When Tawnos's Coffin leaves the battlefield or becomes untapped, return that exiled card to the battlefield under its owner's control tapped with the noted number and kind of counters on it. If you do, return the other exiled cards to the battlefield under their owner's control attached to that permanent.

Tetsuo Umezawa can't be the target of Aura spells.

{U}{B}{B}{R}, {T}: Destroy target tapped or blocking creature.

At the beginning of each player's upkeep, destroy target nonartifact creature that player controls of their choice. It can't be regenerated.

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

Flying, first strike

Time Vault enters the battlefield tapped.

Time Vault doesn't untap during your untap step.

If you would begin your turn while Time Vault is tapped, you may skip that turn instead. If you do, untap Time Vault.

{T}: Take an extra turn after this one.

Sacrifice an artifact. If you do, search your library for an artifact card. If that card's mana value is less than or equal to the sacrificed artifact's mana value, put it onto the battlefield. If it's greater, you may pay {X}, where X is the difference. If you do, put it onto the battlefield. If you don't, put it into its owner's graveyard. Then shuffle.

Trample

Two-Headed Giant of Foriys can block an additional creature each combat.

Typhoon deals damage to each opponent equal to the number of Islands that player controls.

({T}: Add {U} or {B}.)

{T}: Add {C}.

{1}{B}, {T}: Put target creature card from your graveyard on top of your library.

Each player discards their hand, then draws seven cards.

You may choose not to untap Willow Satyr during your untap step.

{T}: Gain control of target legendary creature for as long as you control Willow Satyr and Willow Satyr remains tapped.

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.

{T}: Add {C}.

{G}, {T}: Regenerate target creature.

Until end of turn, you may play lands and cast spells from your graveyard.

If a card would be put into your graveyard from anywhere this turn, exile that card instead.