Demon's Den

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.

Enchantment — Aura

Flash Enchant creature When this Aura enters, enchanted creature gains first strike until end of turn. Enchanted creature gets +1/+0.

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.

Creature — Human Soldier

This creature can't attack alone. Whenever this creature attacks, untap target creature.

Artifact Creature — Construct

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

Artifact

{2}, {T}: Target player mills two cards.

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.

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

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.)

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.

Sorcery

Draw X cards. Then you may put a permanent card with mana value X or less from your hand onto the battlefield tapped.

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.)

Creature — Dragon

Flying Whenever this creature deals combat damage to an opponent, target player mills four cards.

Creature — Horror

When this creature dies, each player discards their hand.

Creature — Elemental

First strike (This creature deals combat damage before creatures without first strike.) Whenever an opponent casts a white or blue instant or sorcery spell, this creature deals 2 damage to that player.

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.)

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.")

Artifact Creature — Assembly-Worker

{T}: You gain 1 life. If you control creatures named Power Plant Worker and Tower Worker, you gain 3 life instead.

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 — Vedalken Advisor

When this creature enters, you get {E}{E} (two energy counters). {T}, Pay {E}: Target player mills three cards.

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.")

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.)

Legendary Creature — Human Druid

During your turn, Mounts and Vehicles you control have hexproof. Whenever a Mount or Vehicle you control attacks, put a +1/+1 counter on it.

Creature — Elk

Trample Whenever this creature enters or attacks, return target Elf card from your graveyard to your hand. You gain life equal to that card's power.

Creature — Spider

Deathtouch Whenever this creature attacks, target legendary creature you control gains deathtouch until end of turn.

Creature — Elf Scout

Whenever a player attacks you, target attacking creature gets -2/-0 until end of turn. Whenever a player attacks, if they aren't attacking you, that player chooses an attacking creature. It gets +2/+0 until end of turn.

Artifact — Equipment

Flash When this Equipment enters, attach it to target creature you control. Equipped creature gets +2/+0. Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)

Artifact — Equipment

For Mirrodin! (When this Equipment enters, create a 2/2 red Rebel creature token, then attach this to it.) Equipped creature gets +2/+1 and has vigilance. Equip {3}{W} ({3}{W}: Attach to target creature you control. Equip only as a sorcery.)

Land — Sphere

{T}: Add {C}. {T}: Add one mana of any color. Activate only if this land entered this turn. {3}, {T}: Create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This token can't block." (Players dealt combat damage by it also get a poison counter.)

Instant

Destroy target creature that was dealt damage this turn. Draw a card.

Creature — Shapeshifter

You may have this creature enter as a copy of a creature you control.

Legendary Artifact

{5}, {T}: Scry 1, then draw a card. This ability costs {1} less to activate for each legendary creature you control.