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Location(s) Hidden Patch
Damage Chaos
Resistance(s) Elemental
Modifier(s) Quick
Fast Attacks
Extra Projectiles
Skill(s) Proximity Shield
Spike Firestorm

Thornrunner is the corrupted area boss for the Hidden Patch. It is a Spine Serpent.


  • Proximity Shield
  • Uses FirestormFirestormSpell, AoE, Duration, Fire
    Radius: 25 / 10
    Mana Cost: (13-25)
    Soul Gain Prevention: 0.001 sec
    Cast Time: 0.75 sec
    Critical Strike Chance: 6.00%
    Effectiveness of Added Damage: 50%
    Requires Level 28Flaming bolts rain down over the targeted area. They explode when landing, dealing damage to nearby enemies.Per 1% Quality:1231% increased DamageFirst Impact deals 3% more damage
    0 seconds to Base duration
    1% reduced Enemy Stun Threshold
    +6.01295e+09 seconds to Base duration
    Deals (22-207) to (33-311) Fire Damage
    One impact every 0.2 seconds
    First Impact deals 150% more damage
    First Impact has 100% more area of effect
    Maximum 3 Firestorms at a time
    Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
    Firestorm skill icon.png
    with spike projectiles
  • Quick
  • Fast Attacks
  • Extra Projectiles
  • Chaos Damage
  • Resists Elemental Damage
  • Resists Chaos