As an additional cost to cast this spell, discard X cards.
Look at target opponent's hand and choose X cards from it. That player discards those cards.
As an additional cost to cast this spell, discard X creature cards.
Return X target creatures to their owners' hands.
• Target player gains X life.
• Prevent the next X damage that would be dealt to any target this turn.
This spell can't be countered.
You may have Altered Ego enter the battlefield as a copy of any creature on the battlefield, except it enters with X additional +1/+1 counters on it.
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.
Apocalypse Hydra enters the battlefield with X +1/+1 counters on it. If X is 5 or more, it enters the battlefield with an additional X +1/+1 counters on it.
, Remove a +1/+1 counter from Apocalypse Hydra: Apocalypse Hydra deals 1 damage to any target.
Aurelia's Fury deals X damage divided as you choose among any number of targets. Tap each creature dealt damage this way. Players dealt damage this way can't cast noncreature spells this turn.
Destroy X target snow lands.
Balduvian Hydra enters the battlefield with X +1/+0 counters on it.
Remove a +1/+0 counter from Balduvian Hydra: Prevent the next 1 damage that would be dealt to Balduvian Hydra this turn.
: Put a +1/+0 counter on Balduvian Hydra. Activate this ability only during your upkeep.
Target attacking creature gets +X/+0 until end of turn.
Banefire deals X damage to any target.
If X is 5 or more, this spell can't be countered and the damage can't be prevented.
Target creature gets -X/-X until end of turn. You gain X life.
Creatures you control have base power and toughness X/X until end of turn.
Put X -1/-1 counters on each creature. Shuffle Black Sun's Zenith into its owner's library.
Blaze deals X damage to any target.
You may exile a red card with converted mana cost X from your hand rather than pay this spell's mana cost.
Target creature gets +X/+0 until end of turn.
Target player draws X cards. Shuffle Blue Sun's Zenith into its owner's library.
As an additional cost to cast this spell, pay X life.
Each other player loses X life.
Bonfire of the Damned deals X damage to target player or planeswalker and each creature that player or that planeswalker's controller controls.
Borrowing the East Wind deals X damage to each creature with horsemanship and each player.
Target player draws X cards.
Draw four cards, then choose X cards in your hand and discard the rest.
Briber's Purse enters the battlefield with X gem counters on it.
, , Remove a gem counter from Briber's Purse: Target creature can't attack or block this turn.
Radiance — Brightflame deals X damage to target creature and each other creature that shares a color with it. You gain life equal to the damage dealt this way.
Destroy X target artifacts. Builder's Bane deals damage to each player equal to the number of artifacts they controlled that were put into a graveyard this way.
Burn from Within deals X damage to any target. If a creature is dealt damage this way, it loses indestructible until end of turn. If that creature would die this turn, exile it instead.
The next X damage that would be dealt to target creature, planeswalker, or player this turn is dealt to another target creature, planeswalker, or player instead.
Chamber Sentry enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it.
, , Remove X +1/+1 counters from Chamber Sentry: It deals X damage to any target.
: Return Chamber Sentry from your graveyard to your hand.
Chimeric Mass enters the battlefield with X charge counters on it.
: Until end of turn, Chimeric Mass becomes a Construct artifact creature with "This creature's power and toughness are each equal to the number of charge counters on it."
Search your library for a creature card with converted mana cost X or less and put it onto the battlefield. Then shuffle your library.
• Clan Defiance deals X damage to target creature with flying.
• Clan Defiance deals X damage to target creature without flying.
• Clan Defiance deals X damage to target player or planeswalker.
Counter target spell unless its controller pays .
Choose any target, then choose another target for each time this spell was kicked. Comet Storm deals X damage to each of them.
Exile the top X cards of your library. Until the end of your next turn, you may play those cards.
Conflagrate deals X damage divided as you choose among any number of targets.
Consume Spirit deals X damage to any target and you gain X life.
Corrosive Gale deals X damage to each creature with flying.
Crater's Claws deals X damage to any target.
Ferocious — Crater's Claws deals X plus 2 damage to that permanent or player instead if you control a creature with power 4 or greater.
Put target creature or enchantment card from an opponent's graveyard onto the battlefield under your control.
Exile X target creatures. For each creature exiled this way, its controller creates a 2/2 green Boar creature token.
Cut deals 4 damage to target creature.
Target player draws X cards and loses X life.
Target player creates X 2/2 black Zombie creature tokens, then up to one target creature gets -1/-1 until end of turn for each Zombie that player controls.
Each player loses X life, discards X cards, sacrifices X creatures, then sacrifices X lands.
Return X target creature cards from your graveyard to your hand.
Death Grasp deals X damage to any target. You gain X life.
Target creature gets -X/-X until end of turn.
Each opponent loses two times X life. You gain life equal to the life lost this way.
Create X 4/4 white Angel creature tokens with flying.
When you cycle Decree of Justice, you may pay . If you do, create X 1/1 white Soldier creature tokens.
Search your library for a multicolored card, reveal it, and put it into your hand. Then shuffle your library.
Demonfire deals X damage to any target. If a creature dealt damage this way would die this turn, exile it instead.
Hellbent — If you have no cards in hand, this spell can't be countered and the damage can't be prevented.
Destroy target artifact with converted mana cost X. It can't be regenerated. Detonate deals X damage to that artifact's controller.
Devil's Play deals X damage to any target.
Search your library for up to X cards and put those cards into your hand. Then shuffle your library.
Destroy target creature with converted mana cost X.
Disintegrate deals X damage to any target. If it's a creature, it can't be regenerated this turn, and if it would die this turn, exile it instead.
Return all nonland permanents with converted mana cost X or less to their owners' hands.
You may exile a blue card with converted mana cost X from your hand rather than pay this spell's mana cost.
Counter target spell if its converted mana cost is X.
Return X target nonland permanents to their owners' hands.
Prevent the next X damage that would be dealt to you and/or permanents you control this turn. If damage is prevented this way, Divine Deflection deals that much damage to any target.
Gain control of target creature with converted mana cost X or less.
Each player puts the top X cards of their library into their graveyard. For each creature card put into a graveyard this way, you create a tapped 2/2 black Zombie creature token.
Destroy X target nonblack creatures. Draw X cards.
Dwarven Catapult deals X damage divided evenly, rounded down, among all creatures target opponent controls.
Earth deals X damage to each creature without flying.
Earthquake deals X damage to each creature without flying and each player.
Electrodominance deals X damage to any target. You may cast a card with converted mana cost X or less from your hand without paying its mana cost.
Create X tapped 2/2 black Zombie creature tokens.
Endless One enters the battlefield with X +1/+1 counters on it.
Endless Scream enters the battlefield with X scream counters on it.
Enchanted creature gets +1/+0 for each scream counter on Endless Scream.
• Energy Bolt deals X damage to target player or planeswalker.
, Sacrifice Engineered Explosives: Destroy each nonland permanent with converted mana cost equal to the number of charge counters on Engineered Explosives.
Reveal the top X cards of your library. Put all creature cards revealed this way into your hand and the rest on the bottom of your library in any order.
Gain control of target creature with converted mana cost X.
Return X target creature cards from your graveyard to the battlefield.
Exile the top X cards of your library. For each instant and sorcery card with converted mana cost X or less among them, you may cast that card without paying its mana cost. Then put all cards exiled this way that weren't cast into your graveyard.
Reveal the top X plus one cards of your library and separate them into two piles. An opponent chooses one of those piles. Put that pile into your hand and the other into your graveyard.
Target spell's controller exiles it with X delay counters on it.
At the beginning of each of that player's upkeeps, if that card is exiled, remove a delay counter from it. If the card has no delay counters on it, the player puts it onto the stack as a copy of the original spell.
Exile target attacking creature unless its controller pays .
Copy target instant or sorcery spell with converted mana cost 4 or less. You may choose new targets for the copy.
Explosion deals X damage to any target. Target player draws X cards.
Each opponent loses X life. You gain life equal to the life lost this way.
Fall of the Titans deals X damage to each of up to two targets.
Fanning the Flames deals X damage to any target.
• Each player draws X cards.
• Each player puts the top X cards of their library into their graveyard.
Fault Line deals X damage to each creature without flying and each player.
: Put a +1/+1 counter on Feral Hydra. Any player may activate this ability.
Prevent the next X damage that would be dealt to you this turn.
This spell costs more to cast for each target beyond the first.