Demon's Den

Creature — Elf Druid

Trample This creature gets +1/+1 for each creature you control and each creature card in your graveyard.

Land

{T}: Add {C}. {W}{U}, {T}, Exile a creature card from your graveyard: Create a 1/1 white Spirit creature token with flying.

Creature — Human Rogue

Whenever one or more other creatures die, draw a card. This ability triggers only once each turn.

Legendary Creature — Vampire Scientist Villain

Flying, vigilance, lifelink {U}{B}, Exile this card from your graveyard: Look at the top three cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

Kindred Enchantment — Elf

At the beginning of your upkeep, surveil 1. (Look at the top card of your library. You may put it into your graveyard.) {4}{G}{G}, Sacrifice this enchantment: Create X 2/2 black and green Elf creature tokens, where X is the number of Elf cards in your graveyard. Activate only as a sorcery.

Creature — Elf Warrior

Other Elves you control get +1/+1. When this creature dies, return another target Elf card from your graveyard to your hand.

Legendary Planeswalker — Mordenkainen

+2: Draw two cards, then put a card from your hand on the bottom of your library. −2: Create a blue Dog Illusion creature token with "This token's power and toughness are each equal to twice the number of cards in your hand." −10: Exchange your hand and library, then shuffle. You get an emblem with "You have no maximum hand size."

Instant

Until end of turn, target creature becomes a Dragon with base power and toughness 4/4 and gains flying. (It loses all other creature types.)

Sorcery

You draw a card and you lose 1 life. Amass Orcs 1. (Put a +1/+1 counter on an Army you control. It's also an Orc. If you don't control an Army, create a 0/0 black Orc Army creature token first.)

Artifact Creature — Wall

Defender Whenever you attack with one or more Goblins and/or Orcs, create a 2/1 colorless Construct artifact creature token with flying named Ballistic Boulder that's tapped and attacking. Sacrifice that token at end of combat.

Enchantment — Aura

Enchant creature Enchanted creature gets -3/-0 and has "At the beginning of your upkeep, exile this creature unless you pay 2 life."

Creature — Orc Rogue

Deathtouch, haste {T}, Discard a card: Draw a card. If the discarded card was a creature card, amass Orcs 1. (Put a +1/+1 counter on an Army you control. It's also an Orc. If you don't control an Army, create a 0/0 black Orc Army creature token first.)

Creature — Human Warrior

Legendary Creature — Shapeshifter

Changeling (This card is every creature type.) As Morophon enters, choose a creature type. Spells of the chosen type you cast cost {W}{U}{B}{R}{G} less to cast. This effect reduces only the amount of colored mana you pay. Other creatures you control of the chosen type get +1/+1.

Enchantment — Aura

Enchant creature you control Enchanted creature gets +1/+1. Whenever enchanted creature deals combat damage to a player, you may sacrifice this Aura. If you do, destroy target enchantment.

Instant

Target creature gets +1/+1 and gains lifelink until end of turn. (Damage dealt by the creature also causes its controller to gain that much life.)

Instant

Destroy target creature or enchantment.

Legendary Creature — Bird Skeleton Warlock

Flying When Moseo enters, create a 1/1 black and green Pest creature token with "Whenever this token attacks, you gain 1 life." Infusion — At the beginning of your end step, if you gained life this turn, return up to one target creature card with mana value X or less from your graveyard to the battlefield, where X is the amount of life you gained this turn.

Creature — Treefolk

Trample When this creature enters, you gain 5 life.

Creature — Elemental Hydra

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.) This creature enters with a +1/+1 counter on it. Landfall — Whenever a land you control enters, double the number of +1/+1 counters on this creature.

Land

{1}, {T}: Add {R}{G}.

Creature — Plant Skeleton

Kicker {3} (You may pay an additional {3} as you cast this spell.) If this creature was kicked, it enters with three +1/+1 counters on it. Whenever one or more +1/+1 counters are put on a creature you control, if this card is in your graveyard, you may put this card on top of your library.

Creature — Snake

Deathtouch

Land

Hideaway 4 (When this land enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) This land enters tapped. {T}: Add {G}. {G}, {T}: You may play the exiled card without paying its mana cost if creatures you control have total power 10 or greater.

Creature — Human Warrior

Whenever you attack, target attacking creature gets +1/+0 and gains first strike until end of turn.

Enchantment — Aura

Flash Enchant creature Enchanted creature gets +2/+1. When enchanted creature dies, create two Treasure tokens.

Creature — Fox Warrior

Flying {3}{W}, {T}: Tap target creature.

Creature — Human Samurai

Flying Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)

Creature — Horse

Trample, haste Whenever this creature attacks, attacking creatures get +1/+1 until end of turn. If a Food entered under your control this turn, untap those creatures and they get an additional +2/+2 until end of turn.