Chthonic Fissure

Warlock · Acolyte

Opens an infernal fissure in the ground, dealing fire damage over time to enemies on top of it, as well as releasing Spirits from the fissure that seek nearby enemies. These spirits inflict enemies with Torment, a Curse that slows and deals necrotic damage over time.

Max 1 active fissure.

More information

Added damage for the Fissure applies at 120% effectiveness each second.

Added damage for the Spirits applies at 30% effectiveness.

Torment applies 18% less movement speed (multiplicative with other modifiers), deals 120 damage over 3 seconds and added damage applies at 200% effectiveness per second.

Effect

Base damage over time
6 Fire (every 0.25 s)
Added damage effectiveness
30 %
Counts as
Fire, Spell

Base values before skill tree nodes, passives and gear.

Skill tree: Chthonic Fissure

The skill tree as it appears in game. A specialized skill gains one point per level up to level 20; the number on a connection shows how many points the previous node needs.

Hover or tap a node for its description. The number on a node is its maximum points.

All nodes as a list (30)
  1. Fragile Crust max 3

    Chthonic Fissure costs less mana and it refunds some of its mana cost if there is a cursed player, rare enemy or boss within 20 meters when you cast it.

    This effect also works if you are Cursed.

    • -4 Mana Cost
    • 6% Mana Refunded
  2. Fell Fire max 4

    Tormenting an ignited enemy spreads all of your ignite stacks from it to a number of other enemies around it.

    • Torment Spreads Ignite Stacks
    • 1 Maximum Targets

    Requires Fragile Crust or Valley of Defilement or Tombgorger

    Converted ailments are also spread.

  3. Stygian Current max 5

    The Fissure releases Spirits more frequently.

    • +8% Spirit Frequency

    Requires 2 points in Severed Wards or 2 points in Fell Fire

  4. Of Gloom and Flames max 1

    Chthonic Fissure now creates a secondary Fissure in the opposite direction that casts its own Spirits. Enemies can take damage from both Fissures if they stand on both, but Chthonic Fissure costs significantly more mana.

    • Secondary Fissure
    • +80% Mana Cost

    Requires 2 points in Stygian Current

    This effect will not create more than 2 Fissures if you also have The Sunderer's Domain node.

  5. Chaotic Rupture max 3

    Spirits now have a chance to be replaced by a cast of Chaos Bolts that consumes a portion of its mana cost and scales with your Chaos Bolts tree.

    Chaos Bolts cast this way have a chance to have no additional projectiles.

    • 13% Chance to replace Spirits with Chaos Bolts
    • 60% Chaos Bolts Mana Consumption fixed
    • 60% Chance for no Extra Projectiles fixed

    Requires 2 points in Stygian Current

  6. Spirit Gale max 2

    When Tormented enemies die they have a chance to release the Spirit to inflict and Torment another enemy within 8 meters.

    • 25% Spirit Release Chance

    Requires Fragile Crust or Severed Wards

  7. Severed Wards max 3

    The Spirits' hits shred enemy necrotic resistance.

    • +1 Necrotic Res Stacks

    Requires Spirit Gale or 2 points in Stygian Current

  8. Singed by Terror max 3

    The Spirits' hits shred enemy fire resistance.

    • +1 Fire Res Shred Stacks

    Requires Severed Wards

  9. Return Below max 1

    When Spirits Torment an enemy afflicted by an Infernal Shade they consume the Shade, causing it to instantly deal its remaining damage and increases all existing Chthonic Fissures' frequency of releasing Spirits up to a maximum.

    • Infernal Shade deals its Remaining Damage
    • +15% Increased Spirit Frequency
    • 60% Maximum Spirit Frequency Bonus

    Requires 2 points in Singed by Terror

  10. Damned Waters max 3

    The Spirits' hits inflict enemies with Damned.

    • +1 Damned Stacks

    Requires Spirit Gale

  11. Grim Tide max 1

    Chthonic Fissure and ailments it inflicts deal more necrotic damage (multiplicative with other modifiers) per 1% Added Critical Strike Multiplier.

    • +1% Necrotic Damage per 1% Added Crit Multi

    Requires 2 points in Damned Waters

    This doesn't include the base 200% crit multi.

  12. Twisted Waves max 3

    Torment deals more damage (multiplicative with other modifiers) based on your uncapped necrotic resistance.

    • +1% Damage per 3% Necrotic Res

    Requires 2 points in Damned Waters

  13. Eradication max 3

    Chthonic Fissure deals more damage (multiplicative with other modifiers) to rare enemies and bosses.

    This effect is doubled if the enemy or you are cursed.

    • +8% Damage to Rares and Bosses
    • Doubled if Cursed fixed

    Requires Fragile Crust or Grasp of the Undying

  14. Beacon of Torment max 1

    Spirits now target you instead of enemies, and whenever you are Tormented or Torment's duration on you is refreshed, you gain additional spell damage and Endurance Threshold.

    This buff can stack and has the same duration as Torment, but persists if Torment is cleansed.

    • +3 Spell Damage Buff
    • +15 Endurance Threshold Buff

    Requires Eradication

  15. Grasp of the Undying max 4

    The Fissure deals more direct damage for each second it is active (multiplicative with other modifiers) and you leech a portion of the damage it does.

    • +2% Fissure Direct Damage bonus per Second
    • +0.5% Fissure Health Leech

    Requires Death from Below or Eradication

    Direct damage modifiers do not affect damage of ailments and subskills from Chthonic Fissure.

  16. The Sunderer's Domain max 1

    You can now have additional Fissures active at a time, but Spirits are released less frequently.

    If a Fissure is placed over an existing one, the new Fissure closes after 1 second.

    • +2 Maximum Fissures
    • -50% Spirit Frequency

    Requires 3 points in Grasp of the Undying

    You cannot create more than 2 Fissures if you also have the Of Gloom and Flames node.

  17. Deepest Ravine max 1

    Chthonic Fissure deals more damage (multiplicative with other modifiers), but it no longer releases Spirits.

    • +25% Damage
    • Removes Spirits

    Requires The Sunderer's Domain

  18. Rekindled Graves max 1

    Fissures now cast Volatile Zombies every 2 seconds, but consumes mana equal to a portion of Volatile Zombies mana cost.

    Volatile Zombie cast this way has a chance to not create multiple Zombies if it would otherwise.

    • 70% Volatile Zombies Mana Consuption
    • 70% Chance for no additional Zombies

    Requires The Sunderer's Domain

  19. Death from Below max 2

    Chthonic Fissure deals more damage (multiplicative with other modifiers).

    This effect is doubled if you are cursed.

    • +5% Damage
    • Doubled if Cursed fixed
  20. Pyrochasm max 1

    The Fissure's initial impact now hits enemies dealing spell fire damage, with added damage applying at 300% effectiveness for this hit.

    • Fissure Fire Damage on Hit

    Requires Death from Below

    This hit can be converted to to physical by Blood Gulch, or to necrotic by Valley of Defilement.

  21. Fissure of Wrath max 1

    The Fissure's initial hit now deals additional spell damage with a higher chance to stun per 2% ignite chance.

    This effects scales with bleed or poison if the Fissure is converted to physical or poison respectively.

    • +1 Fissure Spell Damage per 2% Ignite Chance
    • 5% Fissure Increased Stun Chance per 2% Ignite Chance

    Requires Pyrochasm

    Ailment chance is counted before being converted.

  22. Forbidden Chasm max 1

    The Fissure's initial hit now Curse enemies with Acid Skin, which causes them to take poison damage over time and a chance to be critically struck by any hit.

    • Acid Skin on Fissure hit
    • +20% Crit Chance from Acid Skin

    Requires Fissure of Wrath

  23. Acidbane max 1

    Your hits against enemies cursed by Acid Skin have additional base critical strike chance per 10% of your global increased poison damage.

    This bonus critical strike chance is not affected by other critical strike chance modifiers.

    • +1% Bonus Crit Chance per 10% Inc Poison Damage

    Requires Forbidden Chasm

  24. Ash Cloud max 3

    The Fissure's initial impact now spreads all of your ignite stacks from the target to nearby enemies up to a maximum.

    • Fissure Spreads Ignite Stacks
    • 2 Maximum Targets

    Requires Pyrochasm

  25. Chthonic Passage max 1

    When directly casting Chthonic Fissure you now travel along the Fissure as it opens, but this adds a cooldown to Chthonic Fissure.

    Chthonic Fissure gains the Traversal tag.

    • Travel along Fissure
    • Counts as Traversal Skill
    • +3.5 Cooldown (seconds)

    Requires Pyrochasm

  26. Mantle of Flames max 4

    The Fissure gains a percentage of your global chance to ignite on hit as ignite chance per second.

    Additionally, the Fissure has a base chance to ignite enemies each second.

    • 100% Your Ignite Chance -> Ignite Chance per Second
    • +50% Ignite Chance per Second

    Requires Death from Below or Valley of Defilement or Chronicles of Ruin

    This effect still applies even if Chthonic Fissure is converted.

    For example your global bleed chance will be converted to bleed chance per second with the Blood Gulch node.

  27. Blood Gulch max 1

    Chthonic Fissure's base fire damage is converted to physical. Consequently this damage scales with increases to physical damage, but not increases to fire damage.

    Ignite chance from all sources are converted to bleed chance per second for the Fissure.

    Swaps Chthonic Fissures' Fire tag for a Physical tag.

    • Fire -> Physical Conversion
    • Ignite -> Bleed Chance

    Requires Mantle of Flames

  28. Chronicles of Ruin max 4

    Torment lasts longer and any ignite, poison and bleed inflicted by Chthonic Fissure also last longer.

    • +25% Torment Duration
    • +10% Other Ailment Duration

    Requires Tombgorger or Mantle of Flames

  29. Tombgorger max 3

    Torment deals more damage (multiplicative with other modifiers) to ignited, poisoned or bleeding enemies.

    • +15% Torment Damage

    Requires Chronicles of Ruin or Fell Fire

  30. Valley of Defilement max 1

    Chthonic Fissure's base fire damage over time is converted to poison. Consequently this damage scales with increases to poison damage, but not increases to fire damage.

    Ignite chance from all sources is converted to poison chance per second for the Fissure.

    Swaps Chthonic Fissures' Fire tag for a Poison tag.

    • Fire -> Poison Conversion
    • Ignite -> Poison Chance

    Requires Mantle of Flames or Fell Fire

    This has no effect if Chthonic Fissure is converted to Physical with the Blood Gulch node.

More skills: Warlock

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