Whenever a land enters, this artifact deals 2 damage to that land's controller.

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

If you would lose unspent mana, that mana becomes colorless instead.

Whenever a land an opponent controls is tapped for mana, tap all lands that player controls that could produce any type of mana that land could produce.

Whenever a player casts a spell, if it's not their turn, this creature deals 4 damage to them.

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

{1}: Untap this artifact. {2}, {T}: You gain 1 life. {3}, {T}: Untap target creature. {4}, {T}: Tap target creature. {5}, {T}: Draw a card.

This artifact enters tapped. {T}: Add one mana of any color that a basic land you control could produce.

When this artifact enters, draw a card. Each land with an activated ability that isn't a mana ability doesn't untap during its controller's untap step.

Whenever a player casts a spell, if it's not their turn, this creature deals 4 damage to them. Whenever you activate an exhaust ability, put a +1/+1 counter on this creature.

First strike, haste Whenever a player taps a land for mana, if this creature is tapped, that player adds one mana of any type that land produced. Then that land deals 1 damage to that player.

At the beginning of each postcombat main phase, the active player adds {C}{C} for each of your opponents who lost life this turn. (Damage causes loss of life.)

Whenever a player activates an ability that isn't a mana ability, this creature deals 1 damage to that player.

Players can cast spells only during their own turns.

Each spell you cast that's red or green costs {1} less to cast.

Whenever an opponent activates an ability of an artifact, creature, or land on the battlefield, if it isn't a mana ability, this creature deals 2 damage to that player.

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.) {T}: Add {B}, {R}, or {G}.

Whenever an opponent activates an ability of an artifact, creature, or land that isn't a mana ability, this creature deals 1 damage to that player. {3}{R}{R}: This creature gets +3/+3 and gains menace until end of turn.

At the beginning of each player's first main phase, that player adds {G}{G}.

Whenever a land an opponent controls enters, that player loses 1 life. Put a +1/+1 counter on this creature.

Flying, trample Whenever one or more opponents each lose exactly 1 life, put a +1/+1 counter on Ob Nixilis. Exile the top card of your library. Until your next end step, you may play that card.

Whenever an opponent activates an ability of a creature or land that isn't a mana ability, you may draw a card.

Vigilance, reach Ruric Thar attacks each combat if able. Whenever a player casts a noncreature spell, Ruric Thar deals 6 damage to that player.

Untap all permanents you control during each other player's untap step.

At the beginning of each player's upkeep, that player loses 2 life and draws two cards.

{T}: Add two mana in any combination of colors. Spend this mana only to cast creature spells. Formidable — {9}{G}{G}, {T}: Each player's life total becomes the number of creatures they control. Activate only if creatures you control have total power 8 or greater.

At the beginning of each player's upkeep, that player adds {G}{G}{G}. Until end of turn, they don't lose this mana as steps and phases end.

At the beginning of each player's end step, that player sacrifices an untapped land of their choice.

Menace At the beginning of your upkeep, each player draws a card and loses 1 life.

Flying Ward—Pay 2 life. Whenever an opponent loses life for the first time during each of their turns, put a +1/+1 counter on Valgavoth and draw a card.

When this creature dies, each player may search their library for up to two basic land cards, put them onto the battlefield, then shuffle.

Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

{T}: Add {G}. Whenever you tap this creature for mana, it deals 1 damage to each opponent.

Whenever a player taps a nonbasic land for mana, this enchantment deals 1 damage to that player.

At the beginning of each player's end step, this enchantment deals X damage to that player, where X is the number of untapped lands they control.

At the beginning of each player's upkeep, that player sacrifices a nonbasic land of their choice.

At the beginning of each player's first main phase, that player adds {G}{G}.

Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

Whenever a player taps a land for mana, this enchantment deals 1 damage to that player.

Whenever a player taps a land for mana, that player adds one mana of any type that land produced, and this enchantment deals 1 damage to the player.

At the beginning of each player's upkeep, this enchantment deals X damage to that player, where X is the number of untapped lands they controlled at the beginning of this turn.

Whenever a player taps a land for mana, if it's not that player's turn, destroy that land.

At the beginning of each player's upkeep, this enchantment deals damage to that player equal to the number of nonbasic lands they control.

Whenever a land enters, tap all lands its controller controls.

Destroy target permanent an opponent controls. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle.

Destroy target artifact, creature, or planeswalker.

As an additional cost to cast this spell, sacrifice a land. Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

Permanents you control gain hexproof and indestructible until end of turn.

Price of Progress deals damage to each player equal to twice the number of nonbasic lands that player controls.

{T}: Add {C}. {3}{G}, {T}, Sacrifice this land: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Swamp or Mountain card, put it onto the battlefield, then shuffle.

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. Then if you control four or more lands, untap that land.

({T}: Add {G}.)

{T}: Add {C}. {1}, {T}, Sacrifice this land: Search your library for a basic Swamp, Mountain, or Forest card, put it onto the battlefield tapped, then shuffle.

({T}: Add {R}.)

This land enters tapped. {T}: Add {C}. {2}, {T}, Sacrifice this land: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

When this land enters, sacrifice it. When you do, search your library for a basic Swamp, Mountain, or Forest card, put it onto the battlefield tapped, then shuffle and you gain 1 life.

({T}: Add {B}.)

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

{T}: Add {C}. {T}, Sacrifice this land: Search your library for a basic Swamp, Mountain, or Forest card, put it onto the battlefield tapped, then shuffle. Cycling {B}{R}{G} ({B}{R}{G}, Discard this card: Draw a card.)

{T}, Pay 1 life, Sacrifice this land: Search your library for a Swamp or Forest card, put it onto the battlefield, then shuffle.

Acidic Soil deals damage to each player equal to the number of lands they control.

Reveal the top X cards of your library. Put all land cards from among them onto the battlefield tapped and the rest on the bottom of your library in a random order. Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, untap those lands.

Join forces — Starting with you, each player may pay any amount of mana. Each player searches their library for up to X basic land cards, where X is the total amount of mana paid this way, puts them onto the battlefield tapped, then shuffles.

Cleave {1}{B}{B}{G} (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.) Search your library for a [basic land] card, [reveal it,] put it into your hand, then shuffle.

Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

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.

Lavalanche deals X damage to target player or planeswalker and each creature that player or that planeswalker's controller controls.

Tempting offer — Search your library for a land card and put it onto the battlefield. Each opponent may search their library for a land card and put it onto the battlefield. For each opponent who searches a library this way, search your library for a land card and put it onto the battlefield. Then each player who searched a library this way shuffles.

Multikicker {1} (You may pay an additional {1} any number of times as you cast this spell.) Choose any target, then choose another target for each time this spell was kicked. Comet Storm deals X damage to each of them.

Equipped creature gets +1/+1 for each color among permanents you control. As long as this Equipment is attached to a creature, your opponents can't cast spells during your turn. Equip {2}

Crackle with Power deals five times X damage to each of up to X targets.

If you control a commander, you may cast this spell without paying its mana cost. You may choose new targets for target spell or ability.

Search your library for a card, put that card into your hand, then shuffle.

Electrodominance deals X damage to any target. You may cast a spell with mana value X or less from your hand without paying its mana cost.

Each opponent loses X life. You gain life equal to the life lost this way.

Each player may play an additional land on each of their turns. At the beginning of each player's upkeep, if that player has no cards in hand, that player draws three cards.

Shroud (This enchantment can't be the target of spells or abilities.) {X}: Put X tower counters on this enchantment. At the beginning of your upkeep, if there are 100 or more tower counters on this enchantment, you win the game.

Change the target of target spell with a single target. You lose life equal to that spell's mana value.

Choose one. If you control a commander as you cast this spell, you may choose both instead. • Add {R} for each card in target opponent's hand. • Exile the top three cards of your library. You may play them this turn.

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

If you tap a permanent for mana, it produces twice as much of that mana instead.

Trample If you tap a permanent for mana, it produces three times as much of that mana instead.

Choose one — • Exile target player's graveyard. • Destroy target artifact. • Each creature deals 1 damage to its controller.

At the beginning of each player's draw step, that player draws an additional card. Each player may play an additional land on each of their turns.

When this creature enters, each opponent may search their library for up to three basic land cards. They each put one of those cards onto the battlefield tapped under your control and the rest onto the battlefield tapped under their control. Then each player who searched their library this way shuffles.

Flying Your opponents can't gain life. At the beginning of each end step, each opponent loses life equal to the life that player lost this turn. (Damage causes loss of life.)

Flying If an opponent would lose life during your turn, they lose twice that much life instead. (Damage causes loss of life.)

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) If a source you control would deal damage to a permanent or player, it deals triple that damage instead.

Flash If a source would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

Players can't gain life. Damage can't be prevented. All damage is dealt as though its source had wither. (A source with wither deals damage to creatures in the form of -1/-1 counters.)

If a source you control would deal damage to a permanent or player, it deals triple that damage to that permanent or player instead.

Players can't gain life. At the beginning of each player's upkeep, that player loses 1 life. Whenever this enchantment becomes the target of a spell, that spell's controller loses 5 life.

If a source would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

Players can't gain life. At the beginning of each player's upkeep, that player loses half their life, rounded up.

If this card is in your opening hand, you may begin the game with it on the battlefield. Players can't gain life. Damage can't be prevented.