Storm Ruler


Greatsword with a broken blade, also known as the Giantslayer for the residual strength of storm that brings giants to their knees.

Yhorm the Giant once held two of these, but gave one to the humans who doubted him, and left the other to a dear friend before facing his fate as a Lord of Cinder.

Skill: Storm King
Assume stance to imbue sword with storm. Most effective when facing giants.





  • The weapon's Skill deals massive damage against Yhorm the Giant. Upgrading the weapon does not improve that Skill's bonus damage. Much like how you can defeat Storm King from Demon's Souls with that game's Storm Ruler.
  • Despite the description, this weapon has no additional affect against any other giant other than Yhorm the Giant.
  • The "dear friend" mentioned in the weapon description most likely refers to Siegward of Catarina.

In other games


Boss reinforcement. Upgraded with Titanite Scale.

Level Damage Aux Effects Stat Bonuses Cost Souls
+0 154/0/0/0/0 0/0/0 D/D/-/- (40.00%/30.00%/-/-) - -
+1 179/0/0/0/0 0/0/0 D/D/-/- (43.20%/32.40%/-/-) 1 Titanite Scale 760
+2 204/0/0/0/0 0/0/0 D/D/-/- (46.40%/34.80%/-/-) 2 Titanite Scale 1216
+3 229/0/0/0/0 0/0/0 D/D/-/- (49.60%/37.20%/-/-) 4 Titanite Scale 1672
+4 254/0/0/0/0 0/0/0 C/D/-/- (52.80%/39.60%/-/-) 8 Titanite Scale 2128
+5 280/0/0/0/0 0/0/0 C/D/-/- (56.00%/42.00%/-/-) 1 Titanite Slab 3040


The Damage stat dictates how much damage the weapon does. The Damage stats for a weapon are A / B / C / D / E:

Each weapon has one or more Physical damage types:

  • Standard
  • Strike
  • Slash
  • Thrust

Certain enemies are weak or strong against different damage types.
See the damage formula for further details.

Aux Effect:

The Aux Effect stat dictates how effective the weapon will be at causing the effect. The Aux Effect stats for a weapon are A / B / C:


Damage multiplier when performing a backstab or riposte. Value of 100 means no extra damage.

Spell Buff:

Damage multiplier applied to the base value of a Spell. This value scales depending on the primary stat of the Catalyst, i.e. a Catalyst with Intelligence scaling will have its Spell Buff rise as the player's Intelligence rises.

By default the value reflected in the infobox and the upgrades uses 60 Intelligence and/or Faith.

Stats Needed:

The Stats Needed determines how high various Stats must be in order to wield the weapon effectively. The stats required for a weapon are A / B / C / D:

Wielding a weapon without the required Strength and/or Dexterity will incur a penalty to the Physical damage of the weapon, while lower-than-required Intelligence and/or Faith will reduce the Magic/Fire/Lightning/Dark damage and Spell Buff.

Stat Bonuses:

The Stat Bonuses rating indicates the level of bonus damage you do with the weapon, based on the associated Stat. This rating can be S, A, B, C, D, or E (in order from most to least bonus for the associated skill). See Scaling for more information.

The Bonus Stats for a weapon are A/B/C/D:

Damage Reduction:

The Damage Reduction % of the weapon. It dictates how much damage the weapon mitigates while blocking. The Damage Reduction % stats for weapons are A / B / C / D / E :


Determines the amount of stamina expended to block an incoming attack. A higher stability also allows you to block stronger
attacks without breaking guard and reduces the amount of stamina depleted from blocking attacks.


The durability of the weapon.


The weight of the weapon. Note that carrying over 70% of your Equip Load will reduce the speed of your rolls, while going
over 100% will reduce your regular speed to walking and attempts to roll or backstep will leave you momentarily stunned.


Storm Ruler
Storm Ruler Image
General Aux Effects
Physical Damage Type Standard Bleed Effect 0
Sell Price / Soul Value N/A Poison Damage 0
Can this equipment be buffed? No Frost Effect 0
Skill Storm King Stability 35
Skill FP Cost - (20/20) Durability 10
Spell Buff N/A Weight 8.0
Range N/A Critical Damage 100
Damage Damage Reduction
Physical Damage 154 Physical Reduction 50
Magic Damage 0 Magic Reduction 35
Fire Damage 0 Fire Reduction 30
Lightning Damage 0 Lightning Reduction 30
Dark Damage 0 Dark Reduction 35
Requirements Bonuses
Strength Requirement 0 Strength Bonus D
Dexterity Requirement 0 Dexterity Bonus D
Intelligence Requirement 0 Intelligence Bonus -
Faith Requirement 0 Faith Bonus -
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