Demon's Den

Creature — Human Wizard

When this creature enters, you may search your library for an instant or sorcery card with mana value 1, reveal it, put it into your hand, then shuffle.

Creature — Vampire Assassin

Flying Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Creature — Human Soldier

Whenever another creature enters, untap this creature.

Artifact — Vehicle

During turns other than yours, this Vehicle is an artifact creature. Crew 2 (Tap any number of creatures you control with total power 2 or more: This Vehicle becomes an artifact creature until end of turn.)

Sorcery

Create three 1/1 red Gremlin creature tokens. Gremlins you control gain menace, lifelink, and haste until end of turn. (A creature with menace can't be blocked except by two or more creatures.)

Enchantment

Raid — At the beginning of your end step, if you attacked this turn, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.") {2}{B}, Sacrifice this enchantment: Target opponent loses X life, where X is the amount of life you gained this turn.

Instant

Mill four cards, then you may return a permanent card from among them to your hand. (To mill four cards, put the top four cards of your library into your graveyard.)

Instant

Kicker {2}{G} (You may pay an additional {2}{G} as you cast this spell.) Target creature gets +3/+3 until end of turn. If this spell was kicked, that creature gets +5/+5 until end of turn instead.

Enchantment

At the beginning of combat on your turn, target creature you control gets +2/+0 and gains vigilance until end of turn.

Instant

Target creature gets +1/+1 until end of turn for each creature you control.

Instant

Target creature gains trample until end of turn. It also gets +1/+0 until end of turn if you control a Mouse. Draw a card.

Instant

Target creature gets +2/+2 and gains flying until end of turn.

Creature — Mutant Rebel

When this creature enters, create a 2/2 red Mutant creature token. Alliance — Whenever another creature you control enters, put a +1/+1 counter on target creature you control.

Legendary Creature — Phyrexian Beast

Migloz enters with five oil counters on it. {1}, Remove an oil counter from Migloz: It gains vigilance and menace until end of turn. {2}, Remove two oil counters from Migloz: It gets +2/+2 until end of turn. {3}, Remove three oil counters from Migloz: Destroy target artifact or enchantment.

Creature — Dinosaur

Reach When this creature enters, you gain 4 life. Cycling {2} ({2}, Discard this card: Draw a card.)

Sorcery

Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle. Cycling {2} ({2}, Discard this card: Draw a card.)

Creature — Beast

Mutate {2}{G} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.) Whenever this creature mutates, search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Creature — Human

{3}{G}: This creature becomes a Werewolf. Put two +1/+1 counters on it and you draw a card. Activate only once.

Creature — Human Soldier

Vigilance (Attacking doesn't cause this creature to tap.) When this creature enters, look at the top four cards of your library. You may reveal a creature card with power 2 or less from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Artifact Creature — Construct

{T}, Mill a card: Add {C}. (To mill a card, put the top card of your library into your graveyard.)

Artifact — Treasure

{T}, Sacrifice this artifact: Add one mana of any color. {2}: This artifact becomes a Shapeshifter artifact creature with base power and toughness 3/3 until end of turn.

Artifact — Equipment

When this Equipment enters, attach it to target creature you control. Equipped creature gets +1/+0. It gets +3/+1 instead as long as an opponent has eight or more cards in their graveyard. Equip {2}{B}

Enchantment — Aura

Enchant creature You control enchanted creature.

Sorcery

Target opponent discards two cards, mills a card, and loses 1 life. You gain 1 life. (To mill a card, a player puts the top card of their library into their graveyard.)

Creature — Rat Warlock

Threshold — As long as there are seven or more cards in your graveyard, this creature gets +3/+0. {2}{U/B}: Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Instant

Buyback {2}{U} (You may pay an additional {2}{U} as you cast this spell. If you do, put this card into your hand as it resolves.) Tap target artifact, creature, or land.

Creature — Sliver

All Slivers have "{1}, Sacrifice this permanent: Each player discards a card."

Artifact Creature — Construct

This creature enters with two +1/+1 counters on it. {1}, Discard a card: Put a +1/+1 counter on this creature. Remove two +1/+1 counters from this creature: Draw a card.

Enchantment

When this enchantment enters and whenever you draw your third card each turn, amass Zombies 3. (Put three +1/+1 counters on an Army you control. It's also a Zombie. If you don't control an Army, create a 0/0 black Zombie Army creature token first.)

Sorcery

Target player discards two cards. Overload {1}{B} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Sorcery

Target player discards two cards. Put up to one land card discarded this way onto the battlefield tapped under your control.

Sorcery

Target player discards two cards.

Creature — Horror

When this creature dies, each player discards their hand.

Sorcery

Gift a tapped Fish (You may promise an opponent a gift as you cast this spell. If you do, they create a tapped 1/1 blue Fish creature token before its other effects.) Target player draws three cards. If the gift was promised, tap target creature an opponent controls and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Creature — Merfolk Wizard

Exhaust — {X}{U}{U}, {T}: Draw X cards. Put a +1/+1 counter on each Merfolk creature you control. (Activate each exhaust ability only once.)

Artifact

{T}: Add {C}. {1}, {T}, Sacrifice this artifact: Draw a card.

Instant

Until end of turn, target artifact or creature becomes an artifact creature with base power and toughness 4/5. Draw a card.

Creature — Rat Wizard

At the beginning of your upkeep, surveil 1. (Look at the top card of your library. You may put it into your graveyard.) Threshold — As long as there are seven or more cards in your graveyard, creatures your opponents control get -1/-0.

Sorcery

Return target artifact or enchantment card from a graveyard to its owner's hand. Conspire (As you cast this spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose a new target for the copy.)

Creature — Human Rogue

Trample When this creature enters, if you control another outlaw, create a Treasure token. (Assassins, Mercenaries, Pirates, Rogues, and Warlocks are outlaws. A Treasure token is an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Creature — Bird

Flying, vigilance When this creature dies, target creature you control explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on that creature, then put the card back or put it into your graveyard.)

Creature — Spider

Reach When this creature enters, you may mill two cards. (You may put the top two cards of your library into your graveyard.)

Enchantment — Aura

Enchant nonland permanent Enchanted permanent is a Treasure artifact with "{T}, Sacrifice this artifact: Add one mana of any color," and it loses all other abilities. (If it was a creature, it's no longer a creature.)

Enchantment — Aura

Flash Enchant creature When enchanted creature dies, return that card to the battlefield under your control.

Creature — Human Cleric

Afterlife 2 (When this creature dies, create two 1/1 white and black Spirit creature tokens with flying.)

Instant

Counter target spell with mana value 1 or less.

Creature — Horror

When this creature dies, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.")

Legendary Creature — Human Cleric

Vigilance, lifelink Whenever you gain life, put a +1/+1 counter on each Cleric you control.

Land — Desert

This land enters tapped. As it enters, choose a color. {T}: Add one mana of the chosen color.

Creature — Zombie Merfolk

Deathtouch When this creature enters, mill two cards and you gain 2 life. (To mill a card, put the top card of your library into your graveyard.)