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.

First strike

W: Target creature gains first strike until end of turn.

Destroy target artifact, creature, or land. Aftershock deals 3 damage to you.

Sacrifice a creature: Target player puts a number of cards equal to the sacrificed creature's power from the top of their library into their graveyard.

Any player may cast creature spells with converted mana cost 3 or less without paying their mana cost and as though they had flash.

At the beginning of each player's upkeep, Ancient Runes deals damage to that player equal to the number of artifacts they control.

T: Add CC. Ancient Tomb deals 2 damage to you.

Flying

Whenever Angelic Protector becomes the target of a spell or ability, Angelic Protector gets +0/+3 until end of turn.

Buyback 3 (You may pay an additional 3 as you cast this spell. If you do, put this card into your hand as it resolves.)

Prevent the next 3 damage that would be dealt to target creature this turn.

Whenever Apes of Rath attacks, it doesn't untap during its controller's next untap step.

Exile all permanents. You discard your hand.

All Sliver creatures have "2: This creature gets +0/+1 until end of turn."

Flying

Sacrifice an enchantment: Auratog gets +2/+2 until end of turn.

Flying

When Avenging Angel dies, you may put it on top of its owner's library.

All Sliver creatures have "2: This creature gets +1/+0 until end of turn."

Flying; swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Flying

Whenever Bellowing Fiend deals damage to a creature, Bellowing Fiend deals 3 damage to that creature's controller and 3 damage to you.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Cast this spell only before the combat damage step.

Target attacking or blocking creature gets +4/+0 until end of turn. Destroy that creature at the beginning of the next end step.

Sacrifice Blood Pet: Add B.

Destroy all Islands.

As Booby Trap enters the battlefield, choose an opponent and a card name other than a basic land card name.

The chosen player reveals each card they draw.

When the chosen player draws a card with the chosen name, sacrifice Booby Trap. If you do, Booby Trap deals 10 damage to that player.

Sacrifice Bottle Gnomes: You gain 3 life.

T: Put a bounty counter on target nonblack creature.

T: Destroy target creature with a bounty counter on it.

Return Broken Fall to its owner's hand: Regenerate target creature.

Caldera Lake enters the battlefield tapped.

T: Add C.

T: Add U or R. Caldera Lake deals 1 damage to you.

Reach (This creature can block creatures with flying.)

Flying

1, Discard a card at random: Canyon Drake gets +2/+0 until end of turn.

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)

Buyback 3 (You may pay an additional 3 as you cast this spell. If you do, put this card into your hand as it resolves.)

Return target permanent to its owner's hand.

2BB: Exile Carrionette and target creature unless that creature's controller pays 2. Activate this ability only if Carrionette is in your graveyard.

Chaotic Goo enters the battlefield with three +1/+1 counters on it.

At the beginning of your upkeep, you may flip a coin. If you win the flip, put a +1/+1 counter on Chaotic Goo. If you lose the flip, remove a +1/+1 counter from Chaotic Goo.

Charging Rhino can't be blocked by more than one creature.

Red spells cost 2 more to cast.

Islands don't untap during their controllers' untap steps.

T: Add C.

T: Add B or R. Cinder Marsh doesn't untap during your next untap step.

1: The next time a black source of your choice would deal damage to you this turn, prevent that damage.

1: The next time a blue source of your choice would deal damage to you this turn, prevent that damage.

1: The next time a green source of your choice would deal damage to you this turn, prevent that damage.

1: The next time a red source of your choice would deal damage to you this turn, prevent that damage.

1: The next time a creature of your choice with shadow would deal damage to you this turn, prevent that damage.

1: The next time a white source of your choice would deal damage to you this turn, prevent that damage.

T: Prevent the next 1 damage that would be dealt to any target this turn.

All Slivers have "2: Regenerate this permanent."

Flying

When Cloudchaser Eagle enters the battlefield, destroy target enchantment.

Target opponent reveals their hand. You choose a card from it. That player discards that card.

You may choose not to untap Coffin Queen during your untap step.

2B, T: Put target creature card from a graveyard onto the battlefield under your control. When Coffin Queen becomes untapped or you lose control of Coffin Queen, exile that creature.

First strike

3: Exile target creature you control.

Sacrifice Cold Storage: Return each creature card exiled with Cold Storage to the battlefield under your control.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

When Commander Greven il-Vec enters the battlefield, sacrifice a creature.

Buyback 2 (You may pay an additional 2 as you cast this spell. If you do, put this card into your hand as it resolves.)

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.

Counter target spell.

G: Crazed Armodon gets +3/+0 and gains trample until end of turn. Destroy Crazed Armodon at the beginning of the next end step. Activate this ability only once each turn.

Enchant creature

R: Enchanted creature gets +1/+0 until end of turn.

R: Return Crown of Flames to its owner's hand.

3, T: Choose a card name, then reveal a card at random from your hand. If that card has the chosen name, Cursed Scroll deals 2 damage to any target.

Destroy target nonblack creature. It can't be regenerated.

Add BBB.

B: Regenerate Darkling Stalker.

B: Darkling Stalker gets +1/+1 until end of turn.

BB: Target creature gains shadow until end of turn. (It can block or be blocked by only creatures with shadow.)

Shadow (This creature can block or be blocked by only creatures with shadow.)

Whenever a creature with shadow dies, put a +1/+1 counter on Dauthi Ghoul.

Shadow (This creature can block or be blocked by only creatures with shadow.)

Dauthi Horror can't be blocked by white creatures.

Shadow (This creature can block or be blocked by only creatures with shadow.)

Shadow (This creature can block or be blocked by only creatures with shadow.)

1B: Dauthi Mercenary gets +1/+0 until end of turn.

Shadow (This creature can block or be blocked by only creatures with shadow.)

Whenever Dauthi Mindripper attacks and isn't blocked, you may sacrifice it. If you do, defending player discards three cards.

Shadow (This creature can block or be blocked by only creatures with shadow.)

Dauthi Slayer attacks each combat if able.

Tap target creature. It deals damage equal to its power to another target creature.

Whenever a creature is dealt damage, destroy it. It can't be regenerated.

Target player sacrifices a creature.

Whenever an opponent plays a land, put a +1/+1 counter on Dirtcowl Wurm.

Destroy target artifact or enchantment.

Counter target spell.

Draw a card.

Buyback 3 (You may pay an additional 3 as you cast this spell. If you do, put this card into your hand as it resolves.)

Return target creature card from your graveyard to your hand.

Flying

As Dracoplasm enters the battlefield, sacrifice any number of creatures. Dracoplasm's power becomes the total power of those creatures and its toughness becomes their total toughness.

R: Dracoplasm gets +1/+0 until end of turn.

White creatures get -1/-1.

Draw three cards, then put two cards from your hand both on top of your library or both on the bottom of your library.

Destroy X target nonblack creatures. Draw X cards.

When Duplicity enters the battlefield, exile the top five cards of your library face down.

At the beginning of your upkeep, you may exile all cards from your hand face down. If you do, put all other cards you own exiled with Duplicity into your hand.

At the beginning of your end step, discard a card.

When you lose control of Duplicity, put all cards exiled with Duplicity into their owner's graveyard.

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

4, T: An opponent chooses target creature they control. Create a token that's a copy of that creature. That token gains haste until end of turn. Exile the token at the beginning of the next end step. Activate this ability only any time you could cast a sorcery.

Other Elf creatures have forestwalk. (They can't be blocked as long as defending player controls a Forest.)

Other Elves have shroud. (They can't be the targets of spells or abilities.)

At the beginning of each player's precombat main phase, that player adds GG.

Whenever Elite Javelineer blocks, it deals 1 damage to target attacking creature.

Whenever Elven Warhounds becomes blocked by a creature, put that creature on top of its owner's library.

Buyback 4 (You may pay an additional 4 as you cast this spell. If you do, put this card into your hand as it resolves.)

Target creature gets +2/+2 until end of turn.

Green spells you cast cost 1 less to cast.

5, T: Draw two cards, then discard a card.

Enchant creature

Endless Scream enters the battlefield with X scream counters on it.

Enchanted creature gets +1/+0 for each scream counter on Endless Scream.

2, T: Put a +1/+1 counter on Energizer.

Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.)

Enchanted creature gets -2/-2.

R, T: Enraging Licid loses this ability and becomes an Aura enchantment with enchant creature. Attach it to target creature. You may pay R to end this effect.

Enchanted creature has haste.

X can't be 0.

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.

As long as an opponent controls a creature with flying not named Escaped Shapeshifter, Escaped Shapeshifter has flying. The same is true for first strike, trample, and protection from any color.

3, T: Put an elixir counter on Essence Bottle.

T, Remove all elixir counters from Essence Bottle: You gain 2 life for each elixir counter removed this way.

Buyback 3 (You may pay an additional 3 as you cast this spell. If you do, put this card into your hand as it resolves.)

Evincar's Justice deals 2 damage to each creature and each player.

T, Sacrifice a basic land: Target creature gains landwalk of each of the land types of the sacrificed land until end of turn. (It can't be blocked as long as defending player controls a land of any of those types.)

Destroy all creatures of the creature type of your choice.

2BB: Put a -1/-1 counter on target creature.

Whenever a nontoken creature is put into your graveyard from the battlefield, create a 1/1 white Spirit creature token with flying.

Flying