Demon's Den

Land

When this land enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.) {T}: Add {C}. {1}, {T}: Add one mana of any color.

Artifact Creature — Robot

Flying Hexproof (This creature can't be the target of spells or abilities your opponents control.) {10}, Sacrifice this creature: It deals 3 damage to any target. Target player draws three cards and gains 3 life. This ability costs {X} less to activate, where X is the number of differently named lands you control.

Artifact

{1}, {T}: Choose one that hasn't been chosen — • Stimpak — Draw a card. • Fancy Lads Snack Cakes — Create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.") • RadAway — Target player loses all rad counters. Sacrifice this artifact.

Instant

Exile target nonland permanent and the top card of your library. For each of those cards, its owner may play it until the end of their next turn.

Sorcery

This spell costs {3} less to cast if you've sacrificed an artifact this turn. This spell can't be countered. (This includes by the ward ability.) Suspicious Detonation deals 4 damage to target creature.

Artifact — Spacecraft

When this Spacecraft enters, each opponent sacrifices a nontoken creature of their choice. Station (Tap another creature you control: Put charge counters equal to its power on this Spacecraft. Station only as a sorcery. It's an artifact creature at 7+.) 7+ | Flying

Creature — Vampire Soldier

Whenever this creature or another creature or artifact you control dies, target opponent loses 1 life and you gain 1 life. Warp {B} (You may cast this card from your hand for its warp cost. Exile this creature at the beginning of the next end step, then you may cast it from exile on a later turn.)

Instant

Choose target spell. Surveil 2, then counter the chosen spell unless its controller pays {1} for each card in your graveyard. (To surveil 2, look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Enchantment — Aura

This spell costs {1} less to cast if it targets a creature with flying. Enchant creature Enchanted creature gets -5/-3.

Legendary Creature — Insect Villain

Flash Flying Mayhem {B} (You may cast this card from your graveyard for {B} if you discarded it this turn. Timing rules still apply.)

Creature — Insect Warrior

Flying Whenever this creature becomes tapped, you may sacrifice another creature or artifact. If you do, draw a card.

Creature — Goblin

When this creature enters, roll a d20. 1—9 | Create a 1/1 red Goblin creature token. 10—19 | Create two of those tokens. 20 | Create three of those tokens.

Sorcery

Create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") Amass Orcs 2. (Put two +1/+1 counters 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.)