Hidden Realm Cards

Instant

Choose any number of target creatures. Each of those creatures gains persist until end of turn. (When it dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

Creature — Snake Horse Mount

Whenever this creature attacks, reveal the top card of your library and put it into your hand. You lose life equal to that card's mana value if this creature isn't saddled. Otherwise, each opponent loses that much life. Saddle 3 (Tap any number of other creatures you control with total power 3 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.)

Enchantment

Whenever a creature you control with power 1 or less attacks, this enchantment deals 1 damage to the player or planeswalker that creature is attacking.

Creature — Elemental Knight

Reach When this creature enters, reveal the top five cards of your library. Put a land card from among them onto the battlefield and the rest into your graveyard. When this creature dies, you may exile it. If you do, put another target card from your graveyard on top of your library.

Land

{T}: Add {C}. {1}, {T}: Add one mana of any color. {4}, {T}, Sacrifice this land: Put two +1/+1 counters on target creature. Activate only as a sorcery.

Land

If you control two or more other lands, this land enters tapped. {T}: Add {W}. {4}{W}: This land becomes a 3/4 white Dragon creature with flying until end of turn. It's still a land.

Creature — Dragon

This spell costs {X} less to cast, where X is the greatest number of artifacts an opponent controls. Flying, trample, haste Whenever this creature deals combat damage to a player, you create a Treasure token for each artifact that player controls.

Land — Cave

{T}: Add {C}. {2}: This land becomes a 3/3 Elemental creature until end of turn. It's still a Cave land. Activate only if the number of other Caves you control plus the number of Cave cards in your graveyard is three or greater.

Creature — Nightmare

Mutate {3}{B} (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.) Menace (This creature can't be blocked except by two or more creatures.) Whenever this creature mutates, each opponent discards a card.

Creature — Nightmare

Mutate {3}{B} (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.) Menace (This creature can't be blocked except by two or more creatures.) Whenever this creature mutates, each opponent discards a card.

Land

{T}: Add {C}. {T}: Add {W} or {B}. This land deals 1 damage to you.

Instant // Sorcery

Legendary Creature — Elf Noble

Whenever you attack with one or more Elves, scry 1. Whenever you scry, Celeborn gets +1/+1 until end of turn for each card looked at while scrying this way.

Creature — Elf Druid

Alliance — Whenever another creature you control enters, put a +1/+1 counter on this creature.

Legendary Creature — Human Wizard Knight

When Celes enters, discard any number of cards, then draw that many cards plus one. Whenever one or more other creatures you control enter, if one or more of them entered from a graveyard or was cast from a graveyard, put a +1/+1 counter on each creature you control.

Artifact — Equipment

Flash (You may cast this spell any time you could cast an instant.) When this Equipment enters, attach it to target creature you control. That creature gains hexproof and indestructible until end of turn. Equipped creature gets +2/+0 and has flying. Equip {3}{W} ({3}{W}: Attach to target creature you control. Equip only as a sorcery.)

Land

This land enters tapped. {T}: Add {W} or {U}. {3}{W}{U}: Until end of turn, this land becomes a 4/4 white and blue Elemental creature with flying and vigilance. It's still a land.

Enchantment — Aura

Enchant creature Enchanted creature gets +3/+3. Whenever enchanted creature deals combat damage to a player, double its controller's life total.

Creature — Angel Advisor

Flying When this creature enters, choose target creature you don't control and tap it. If you control a creature with a counter on it, the chosen creature doesn't untap during its controller's next untap step.

Sorcery

As an additional cost to cast this spell, you may choose a creature type and behold two creatures of that type. Search your library for a creature card with mana value X or less, reveal it, put it into your hand, then shuffle. If this spell's additional cost was paid and the revealed card is the chosen type, put that card onto the battlefield instead of putting it into your hand.

Creature — Unicorn

Whenever you gain life, put a +1/+1 counter on this creature.

Creature — Zombie

Other Zombie creatures you control get +1/+1. {2}{B}, {T}: Exile target creature card from a graveyard. Create a 2/2 black Zombie creature token.

Creature — Merfolk Scout

When this creature enters, it 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 this creature, then put the card back or put it into your graveyard.)

Creature — Centaur Druid

Whenever this creature deals combat damage to a player, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Artifact — Attraction

Visit — Each player draws a card from the library of the player to their right. You create three Treasure tokens.

Land

{T}: Add {U}. This land deals 1 damage to you. Threshold — {U}, {T}, Sacrifice this land: Target player draws three cards, then discards three cards. Activate only if there are seven or more cards in your graveyard.

Creature — Octopus Wizard

Whenever this creature deals combat damage to a player, return up to that many target permanents that player controls to their owner's hand.

Creature — Octopus Wizard

Whenever this creature becomes the target of a spell or ability, mill three cards. {2}{U}, {T}: Prevent all combat damage that would be dealt to and dealt by target creature you control this turn.

Artifact Creature — Phyrexian Squid

Flying Cephalopod Sentry's power is equal to the number of artifacts you control.

Sorcery

Choose one — • Target opponent discards two cards. • Target opponent reveals their hand. You choose a nonland card from it. That player discards that card.

Instant

Surveil X, where X is the number of artifacts you control. Then draw three cards. (To surveil X, look at the top X cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Artifact — Equipment

Equipped creature gets +2/+1 and has trample. Equip Citizen {1} Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)

Creature — Sphinx

Flying {U}: This creature's owner shuffles it into their library.

Instant

Target creature becomes blue until end of turn. Untap that creature. Draw a card.

Enchantment — Aura

Enchant creature Enchanted creature can't attack. When this Aura is put into a graveyard from the battlefield, return it to its owner's hand.

Creature — Devil

Animate Chains — When this creature enters, each player sacrifices a nontoken creature of their choice.

Legendary Creature — Human Minion

All Nightmares get +1/+1. {B}{B}{B}, Pay 3 life: Put target creature card from a graveyard onto the battlefield under your control. That creature is black and is a Nightmare in addition to its other creature types. When Chainer leaves the battlefield, exile all Nightmares.

Legendary Creature — Human Minion

All Nightmares get +1/+1. {B}{B}{B}, Pay 3 life: Put target creature card from a graveyard onto the battlefield under your control. That creature is black and is a Nightmare in addition to its other creature types. When Chainer leaves the battlefield, exile all Nightmares.

Legendary Creature — Human Minion

Discard a card: You may cast a creature spell from your graveyard this turn. Activate only once each turn. Whenever a nontoken creature you control enters, if you didn't cast it from your hand, it gains haste until your next turn.

Sorcery

Target player sacrifices a creature of their choice. Flashback {5}{B}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Sorcery

Target player sacrifices a creature of their choice. Flashback {5}{B}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Sorcery

Target player sacrifices a creature of their choice. Flashback {5}{B}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Enchantment — Saga

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I, II — This Saga deals 2 damage to each opponent and you gain 2 life. III — Create an X/X black Nightmare Horror creature token, where X is half your life total, rounded up. It deals X damage to you.

Artifact Creature — Equipment Insect

Whenever this creature or equipped creature attacks, it gets +2/+0 until end of turn. Reconfigure {2} ({2}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

Sorcery

Chain Lightning deals 3 damage to any target. Then that player or that permanent's controller may pay {R}{R}. If the player does, they may copy this spell and may choose a new target for that copy.

Instant

Return target nonland permanent to its owner's hand. Then that permanent's controller may sacrifice a land of their choice. If the player does, they may copy this spell and may choose a new target for that copy.

Sorcery

Chain Reaction deals X damage to each creature, where X is the number of creatures on the battlefield.

Enchantment — Aura

Enchant creature you control When this Aura enters, exile target nonland permanent an opponent controls until this Aura leaves the battlefield. Enchanted creature has ward {2}. (Whenever it becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.)

Instant

Target creature gets -4/-0 until end of turn. Scry 2.

Enchantment

When this enchantment enters, return up to one target instant or sorcery card from your graveyard to your hand. Whenever you cast an instant or sorcery spell, draw a card. Then discard a card unless there are three or more Lesson cards in your graveyard.

Creature — Elemental Dog

Partner with Chakram Slinger (When this creature enters, target player may put Chakram Slinger into their hand from their library, then shuffle.) Whenever you cast a spell during your turn, untap target creature.

Enchantment

Whenever one or more creature cards leave your graveyard, create a 2/2 white and blue Detective creature token, then investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")

Legendary Creature — Human Shapeshifter Villain

You may have Chameleon enter as a copy of a creature you control, except his name is Chameleon, Master of Disguise. Mayhem {2}{U} (You may cast this card from your graveyard for {2}{U} if you discarded it this turn. Timing rules still apply.)

Creature — Human Warrior

Creatures with power less than this creature's power can't block creatures you control. Whenever another creature you control enters, put a +1/+1 counter on this creature.

Creature — Skeleton Warrior

{3}{B}{B}, {T}, Sacrifice X other creatures: Return X target creature cards from your graveyard to the battlefield. {5}{B}{B}: Put this card from your graveyard on top of your library.

Creature — Human Warrior

Trample This creature gets +2/+2 for each Aura and Equipment attached to it.

Creature — Zombie

Whenever another Zombie you control enters, put a +1/+1 counter on this creature.

Creature — Goblin Berserker

As an additional cost to cast this spell, behold a Goblin and exile it. (Exile a Goblin you control or a Goblin card from your hand.) Pay 1 life, Blight 2: Target opponent blights 2. Activate only as a sorcery. When this creature leaves the battlefield, return the exiled card to its owner's hand.