Infight (Whenever this creature is dealt damage by a creature, it deals that much damage to that creature.)
When Imp enters, it deals 1 damage to any target. (A ball of fire, straight at your face.)
Haste
Infight (Whenever this creature is dealt damage by a creature, it deals that much damage to that creature.)
Former Human attacks each combat if able.
When Former Human dies, exile it. (No one possesses the same corpse twice.)
When Former Human Sergeant dies, it deals 1 damage to any target. (It drops the shotgun firing.)
Infight (Whenever this creature is dealt damage by a creature, it deals that much damage to that creature.)
: Commando deals 1 damage to target creature. (The chaingun never has to reload.)
Flying, infight
Lost Soul can't block.
Sacrifice Lost Soul: It deals 2 damage to target creature. (It rams whatever is nearest, then bursts.)
Infight (Whenever this creature is dealt damage by a creature, it deals that much damage to that creature.)
Pinky can't block.
Whenever Pinky becomes blocked, it gets +2/+0 until end of turn.
Flying
Infight (Whenever this creature is dealt damage by a creature, it deals that much damage to that creature.)
When Cacodemon enters, it deals 2 damage to target creature an opponent controls. (Ball lightning, belched.)
Flying
At the beginning of your end step, create a 2/1 red Spirit creature token with flying and haste named Lost Soul.
When Pain Elemental dies, create two 2/1 red Spirit creature tokens with flying and haste named Lost Soul. (It bursts into the things it breeds.)
Infight (Whenever this creature is dealt damage by a creature, it deals that much damage to that creature.)
Whenever Revenant attacks, it deals 2 damage to target creature defending player controls. (The missiles follow you around corners.)
Whenever Mancubus attacks, it deals 2 damage divided as you choose among one or two target creatures defending player controls.
Trample
Infight (Whenever this creature is dealt damage by a creature, it deals that much damage to that creature.)
Whenever Cyberdemon attacks, it deals 3 damage to any target. (Rockets, walking.)
First strike, haste
Doomguy gets +1/+1 for each Demon your opponents control.
Direct Hit deals 2 damage to target creature and 1 damage to each other creature that player controls. (Splash damage is how the horde learns to hate itself.)
Target creature gets +4/+0 and gains first strike until end of turn. (Fists first. Fists only.)
Infighting deals 4 damage divided as you choose among one or two target creatures you don't control. (One stray fireball and the horde turns on itself.)
BFG Blast deals 6 damage to target creature and 2 damage to each other creature its controller controls. (The tracers find everyone in the room.)
Exile the top two cards of your library. Until the end of your next turn, you may play those cards.
Whenever an opponent attacks you or a planeswalker you control, create a 1/1 black and red Demon creature token with haste. (The wall was never a wall.)
Create three 1/1 black and red Demon creature tokens with haste. They attack this combat if able.
Crushing Ceiling deals 4 damage to target creature. (The room itself wants you dead.)
Infight (Whenever this creature is dealt damage by a creature, it deals that much damage to that creature.)
Other Demon creatures you control get +1/+0.
Whenever another creature you control dies, Alpha Demon deals 1 damage to any target.
Point Blank deals 2 damage to target attacking or blocking creature.
Target creature you control fights target creature you don't control. (Chainsaw diplomacy.)
Target creature can't be blocked this turn. Draw a card, then discard a card.
Search your library for up to two Equipment cards, put them onto the battlefield, then shuffle. (Very happy ammo added.)
Whenever a creature dies, Frag Fest deals 1 damage to that creature's controller.
Skulk (This creature can't be blocked by creatures with greater power.)
Skulk (This creature can't be blocked by creatures with greater power.)
Whenever Nightmare Spectre attacks, creatures you control get +0/+1 and gain infight until end of turn.
When Former Lab Tech dies, each opponent loses 1 life.
Infight (Whenever this creature is dealt damage by a creature, it deals that much damage to that creature.)
Whenever Hell Knight becomes blocked, it deals 2 damage to any target. (It throws first.)
Infight (Whenever this creature is dealt damage by a creature, it deals that much damage to that creature.)
When Baron of Hell enters, target creature an opponent controls gets -3/-3 until end of turn. (A gout of green plasma.)
: Arachnotron deals 1 damage to any target. (The plasma never stops.)
When Arch-vile enters, it deals 2 damage to target creature an opponent controls. (Line of sight is all it needs.)
, , Sacrifice another creature: Return target Demon card with mana value 4 or less from your graveyard to the battlefield tapped.
Whenever Spider Mastermind attacks, it deals 1 damage to each creature defending player controls. (The super chaingun sweeps the room.)
Destroy target creature. (The ceiling comes down. The ceiling goes up. Repeat.)
Target opponent sacrifices a creature of their choice.
Draw a card. If a creature died this turn, draw two cards instead.
You draw two cards and you lose 2 life. (The intermission screen never lies.)
You gain 6 life.
Draw a card.
You gain 8 life. Draw two cards.
Whenever a Demon you control dies, target opponent loses 1 life and you gain 1 life.
At the beginning of your upkeep, each opponent loses 1 life. (The sky over Inferno is a wound.)
At the beginning of your end step, return up to one target Demon card with mana value 4 or less from your graveyard to the battlefield tapped. (On Nightmare, they come back.)
Target creature you control gets +2/+0 and gains infight until end of turn. (It turns on whatever touches it.)
Skulk (This creature can't be blocked by creatures with greater power.)
When Spectre Pack enters, create a 3/2 black Demon creature token with skulk named Spectre.
Target creature gets -2/-2 until end of turn. If a creature died this turn, that creature gets -4/-4 until end of turn instead.
Return up to two target Demon cards from your graveyard to your hand.
Enchant creature
You control enchanted creature. (Whatever walks in Hell walks out wearing you.)
Defender
At the beginning of your end step, create a 1/1 black and red Demon creature token with haste.
Whenever another Demon you control dies, target opponent loses 1 life.
When The Bruiser Brothers enters, if it isn't a token, create a token that's a copy of it, except the token isn't legendary. (E1M8: they hunt in pairs.)
Destroy all non-Demon creatures.
Return up to two target Demon cards with mana value 4 or less from your graveyard to the battlefield tapped. You lose 3 life.
Create X 1/1 black and red Demon creature tokens with haste.
Creatures you control get +2/+0 and gain infight until end of turn. (Every demon in earshot turns on whatever hurts it.)
Equipped creature gets +1/+0 and has deathtouch.
Equip
Equipped creature gets +1/+0.
Equip
Equipped creature gets +2/+0.
Whenever equipped creature attacks, it deals 1 damage to target creature defending player controls.
Equip
Equipped creature gets +3/+0.
Whenever equipped creature attacks, it deals 2 damage to target creature defending player controls.
Equip
Equipped creature gets +2/+0.
Whenever equipped creature attacks, it deals 1 damage to each of up to two target creatures defending player controls.
Equip
Equipped creature gets +3/+0.
Whenever equipped creature attacks, it deals 2 damage to target creature defending player controls and 1 damage to that creature's controller.
Equip
Equipped creature gets +2/+0.
Whenever equipped creature attacks, it deals 3 damage to target creature defending player controls.
Equip
Equipped creature gets +4/+0.
Whenever equipped creature attacks, it deals 4 damage to target creature defending player controls and 1 damage to each other creature that player controls.
Equip
Equipped creature gets +0/+3.
Equip
When Backpack enters, draw a card.
: Add or .
: Add .
, Sacrifice Red Keycard: Target creature can't be blocked this turn. (The door is open.)
: Add .
, Sacrifice Blue Keycard: Draw a card. (The armory is open.)
: Add or .
, Sacrifice Yellow Keycard: Target creature gets +2/+0 until end of turn. (The weapon cache is open.)
, , Sacrifice Exploding Barrel: It deals 3 damage to any target.
At the beginning of your end step, create a 1/1 black and red Demon creature token with haste. (The cubes fly until something stops them. Nothing stops them.)
, Sacrifice Invulnerability Sphere: Creatures you control get +0/+2 and gain indestructible until end of turn. (Thirty seconds inside the horde while they shoot each other.)
, Sacrifice Blur Sphere: Target creature you control gains hexproof until end of turn and can't be blocked this turn.
, Sacrifice Radiation Suit: Prevent all noncombat damage that would be dealt to you this turn.
When Computer Area Map enters, scry 2.
, Sacrifice Stimpack: You gain 3 life.
Demon spells you cast cost less to cast.
: Add 
.
Flying
When Spawn Cube dies, create a 1/1 black and red Demon creature token with haste.
: Add or .
, , Sacrifice Weapons Cache: Search your library for an Equipment card, reveal it, put it into your hand, then shuffle. (One trip, one weapon.)
: Add two mana in any combination of and/or .
: Add one mana of any color.
, Sacrifice UAC Supply Drop: Draw a card.
Toxin Refinery enters tapped.
: Add or .
The Hangar enters tapped.
: Add or .
Phobos Anomaly enters tapped.
: Add or .
, , Sacrifice Phobos Anomaly: Return target creature to its owner's hand. (The gate takes them somewhere worse.)
: Add .
, : Each opponent loses 1 life. (Something enormous paces the parapet.)
Hell Keep enters tapped unless you control a Demon.
: Add or .
Dis enters tapped unless an opponent lost life this turn.
: Add or .
Hell Beneath enters tapped.
: Add or .
When Hell Beneath enters, scry 1.
: Add .
, : Add or .
: Add .
, , Sacrifice Dead Simple: Create a 1/1 black and red Demon creature token with haste.
: Add .
, , Sacrifice Barrels o' Fun: It deals 2 damage to any target.
Icon's Lair enters tapped.
: Add or .
, : Create a 1/1 black and red Demon creature token with haste.
System Control enters tapped.
: Add or .
When System Control enters, you gain 1 life.
The Hunted Halls enters tapped.
: Add or .
, , Sacrifice The Hunted Halls: Return target Demon card from your graveyard to your hand.
