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For other similar spells, see Firewall.

Class: Sorceress (Diablo IV)
Skill Category: Mastery
Cost: 40 Mana

Create a wall of flames dealing Fire damage to enemies over 8 seconds.

Damage Type: Fire

Firewall is a Mastery Fire spell used by Sorceress in Diablo IV. It is a remake of the classic Sorceress spell of the same name.


Like the original spell, Firewall creates a line of flame that deals periodic damage to enemies that stand in it or attempt to cross it. Enemies affected by the Firewall count as Burning.

Multiple Firewalls can be created at once, potentially covering a large area and making enemies that escape one Firewall to immediately wander into another.


  • Potent Warding (5): Elemental damage and resistances are increased by 2% per point.
  • Devastation (5): Critical strike chance is increased by 2% per point.
  • Align the Elements (5): The Mana cost is reduced by 5% per point.
  • Precision Magic (5): Elemental damage increases over time, up to a maximum of 5% per point after 3 seconds. Attacking resets this effect.
  • Inexorable Reach (5): Damage is increased by 3% per point against enemies outside of melee range.
  • Char to Ash (5): Fire damage is increased by 6% per point each second, up to 30% per point. This effect resets when taking damage.
  • Soulfire (5): Fire damage is increased by 4% per point after standing still for 1.5 seconds. Moving cancels this effect.
  • Blaze of Glory (5): Fire Critical strike damage is increased by 3% per point and Burning enemies deal 2% less damage per point to the Sorceress.
  • Burning Resonance (5): Damaging a Burning enemy has up to a 25% chance to restore 2% Mana per point.
  • Devouring Flames (5): Each source of Burning on an enemy increases the direct damage of Fire spells by 2%, up to 2% per point.
  • Endless Pyre (1): Burning effects deal an additional 15% for each second the target remains Burning, up to 75%.
  • Conflagration (1): direct Fire damage deals an additional 30% damage to Burning targets.
  • Frostbite (5): Damage against Chilled enemies is increased by 2% per point.
  • Endless Winter (1): Critical strike chance against Chilled and Frozen enemies is increased by 30%, but Chill effects no longer Freeze.
Minor Destruction
LightningFire BoltFrost BoltArc Lash

Major Destruction
Charged BoltsFireballIce ShardsIncinerateChain LightningFrozen Orb
Flame ShieldIce ArmorBlizzardTeleport
Frost NovaLightning SpearIce BladesHydra
Deep FreezeInfernoConduit

Potent WardingDevastationAlign the ElementsPrecision MagicInexorable ReachElemental AttunementChar to AshSoulfireBlaze of GloryBurning ResonanceDevouring FlamesEndless PyreConflagrationNumbing ColdIcy TouchCold SnapHoarfrostFrostbiteChill to the BoneEndless WinterCeaseless BoltsOverchargeConvulsionsStaggerCrackling AuraShocking StrikesLightning Mastery
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