Underworld

NecrobinderSkillUncommonPlaytest

Playtest. In the game’s public beta, not in the live game yet; it can still change.

Whenever other players deal attack damage this turn, apply that much Doom.
Exhaust.
  • You gain Underworld for the turn.
  • Every time another player's Attack damages an enemy, that enemy also gains the same amount of Doom; blocked damage counts too, and so do hits from teammates' pets.
  • Your own Attacks and your own Osty do not count.
  • An enemy with at least as much Doom as HP dies at the end of the enemy turn.
  • It Exhausts; the upgrade removes that, and a second play in the same turn doubles the Doom.
  • It appears only in multiplayer runs, and for now only in the public beta, not the live game.
Character
Necrobinder
Type
Skill
Rarity
Uncommon
Cost
2 Energy
Target
Yourself

When to take Underworld

While it runs, each point of a teammate's damage counts twice toward a kill, as lost HP and as Doom. Play it first on the turn your teammates unload, and upgrade it.

Cards that synergize with Underworld

Reaper Form
Power
3
Whenever Attacks deal damage, apply that much Doom.
Reaper Form does the same for your own Attacks and Osty, so the two together cover the whole table.Whenever Attacks deal damage, apply that much Doom.
Time's Up
Attack
2
Deal damage equal to the enemy's Doom.
Exhaust.
Time's Up deals damage equal to the enemy's Doom, and No Escape adds 5 more for every 10 already there.Deal damage equal to the enemy's Doom.
Exhaust.
No Escape
Skill
1
Apply 10 Doom, plus an additional 5 Doom for every 10 Doom already on this enemy.
Time's Up deals damage equal to the enemy's Doom, and No Escape adds 5 more for every 10 already there.Apply 10 Doom, plus an additional 5 Doom for every 10 Doom already on this enemy.
Right Hand Hand
Attack
0
Osty deals 4 damage.
Whenever you play a card that costs or more, return this to your Hand from the Discard Pile.
Right Hand Hand triggers on cards that cost 2 or more, and Underworld is oneOsty deals 4 damage.
Whenever you play a card that costs or more, return this to your Hand from the Discard Pile.
Danse Macabre
Power
1
Whenever you play a card that costs or more, gain 4 Block.
Danse Macabre triggers on cards that cost 2 or more, and Underworld is oneWhenever you play a card that costs or more, gain 4 Block.

Relics that synergize with Underworld

Undying Sigil
Undying Sigil halves the damage of enemies whose Doom has reached their HP.Enemies with at least as much Doom as HP deal 50% less damage.
Burning Sticks
Burning Sticks triggers when cards are Exhausted, and Underworld Exhausts itselfThe first time each combat you Exhaust a Skill, add a copy of it into your Hand.
Joss Paper
Joss Paper triggers when cards are Exhausted, and Underworld Exhausts itselfEvery 5 times you Exhaust a card, draw 1 card.
Forgotten Soul
Forgotten Soul triggers when cards are Exhausted, and Underworld Exhausts itselfWhenever you Exhaust a card, deal 1 damage to a random enemy.
Intimidating Helmet
Intimidating Helmet triggers on cards that cost 2 or more, and Underworld is oneWhenever you play a card that costs or more, gain 4 Block.

Rules and timing

Only appears in multiplayer runs.

✦
Time's Up
Attack
2
Deal damage equal to the enemy's Doom.
Exhaust.
Deathbringer
Skill
2
Apply 21 Doom and 1 Weak to ALL enemies.
Legion of Bone
Skill
2
ALL players Summon 6.
Exhaust.
Cleanse
Skill
1
Summon 3.
Exhaust 1 card from your Draw Pile.
Death's Door
Skill
1
Gain 6 Block.
If you applied Doom this turn, gain Block 2 additional times.
Dirge
Skill
X
Summon 3 X times.
Add X Souls into your Draw Pile.
Exhaust.
Dredge
Skill
1
Put 3 cards from your Discard Pile into your Hand.
Exhaust.
Eidolon
Skill
2
Exhaust your Hand.
If 9 cards were Exhausted this way, gain 1 Intangible.

Changes by version

  1. 13 Aug 2026ArtPlaytest
    Added portrait art for the cards
  2. 16 Jul 2026Bug fixDoomPlaytest
    Underworld card no longer causes Doom to be applied to players when enemies deal attack damage
  3. 2 Jul 2026AddedPlaytest
    Added to the game
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