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Thunderous Greatclub

Thunderous Greatclub
  • Category: Weapon (Greatclub)
  • Rarity: Very Rare (Requires Attunement)

While you are attuned to this magic weapon, your Strength is 20 unless your Strength is already equal to or greater than that score. The weapon deals an extra 1d8 Thunder damage to any creature it hits and an extra 3d8 Thunder damage to objects it hits that aren't being worn or carried.

The weapon has the following additional properties.

Clap of Thunder. As a Magic action, you can strike the weapon against a hard surface to create a loud clap of thunder audible out to 300 feet. You also create a 30 -foot Cone of thunderous energy. Each creature in the Cone must succeed on a DC 15 Strength saving throw or have the Prone condition. Nonmagical objects in the Cone that aren't being worn or carried take 3d8 Thunder damage.

Earthquake. As a Magic action, you can strike the weapon against the ground to create an intense seismic disturbance in a 50 -foot-radius circle centered on the point of impact. Structures in contact with the ground in that area take 50 Bludgeoning damage, and each creature on the ground in that area must succeed on a DC 20 Dexterity saving throw or have the Prone condition. If that creature is also concentrating, it must succeed on a DC 20 Constitution saving throw, or its Concentration is broken. In addition, you can cause a 30 -foot-deep, 10 -foot-wide fissure to open up on the ground anywhere in the area. Any creature on a spot where the fissure opens must make a DC 20 Dexterity saving throw, falling into the fissure on a failed save or moving with the fissure's edge on a successful one. Any structure on a spot where the fissure opens collapses into the fissure. Once you use this property, it can't be used again until the next dawn.

Tactical Applications​

Thunder Combat: Functions as +1 greatclub with thunder damage and knockdown abilities. Exceptional for strength builds, crowd control specialists, and characters requiring enhanced bludgeoning damage with sonic effects.

Class Synergies:

  • Barbarians: Perfect for strength-based warriors wanting enhanced damage and crowd control
  • Fighters: Essential for weapon specialists needing improved bludgeoning capabilities and battlefield control
  • Storm Clerics: Excellent for tempest domain clerics requiring thunder damage and weather-themed combat
  • Strength Builds: Outstanding for characters prioritizing physical power and sonic combat effects

Build Considerations: Requires attunement but provides ongoing enhancement with thunder damage. Most valuable for characters prioritizing strength-based combat and crowd control.

Acquisition Methods​

Crafting Requirements: Requires thunder magic, sonic enchantments, and storm essences. Creation cost 6,000-12,000 gp and takes 12 weeks.

Common Sources:

  • Thunder magic specialists and sonic enchanters
  • Treasure hoards of legendary storm giants and thunder masters
  • Commission from enchanters specializing in weather weapon magic
  • Found in the collections of storm researchers and thunder specialists
  • Sometimes discovered in storm environments or obtained from thunder creature encounters

Alternative Acquisition: Often found in locations with strong connections to thunder magic and storm environments.

Value & Trade​

Estimated Value: 8,000-16,000 gp, with higher demand among strength-based characters and storm specialists.

Trade Considerations: Popular among martial characters and anyone requiring enhanced bludgeoning and thunder capabilities.

Character Integration​

Roleplay Elements: Suggests experience with storm magic, thunder combat, or professional roles requiring sonic weapon capabilities and weather mastery.

Character Concepts:

  • Storm warrior with thunder expertise and weather combat experience
  • Strength specialist using sonic enhancement for crowd control and battlefield dominance
  • Character with extensive experience in storm environments requiring thunder weapon capabilities
  • Weather combatant combining thunder magic with traditional strength techniques

Adventure Hooks​

The Storm Battle: Combat scenarios where thunder damage provides crucial sonic advantages and crowd control effects.

The Weather Mastery Test: Storm competitions where thunder capabilities determine victory and meteorological superiority.

The Sonic Mission: Adventures requiring thunder effects where sonic magic enables objective completion and crowd control.

The Thunder Strike: Combat situations where enhanced bludgeoning determines tactical effectiveness and battlefield control.

Variants & Customization​

Greater Thunderous Greatclub (Legendary): Enhanced thunder power and additional storm abilities with improved sonic capabilities.

Club of Storm Mastery (Artifact): Includes comprehensive thunder magic and ultimate weather enhancement.

Giant's Thunder Club (Very Rare): Optimized for storm combat with enhanced thunder bonuses and weather immunity.

Specialized Variants:

  • Lightning Thunder Club: Enhanced for storm magic with improved electrical damage and weather control
  • Earthquake Club: Optimized for earth effects with enhanced ground tremors and seismic damage
  • Hurricane Club: Specialized for wind effects with enhanced air control and atmospheric manipulation

Lore & History​

Origins: Created by ancient storm giants who needed reliable thunder enhancement for their weather mastery and storm combat.

Historical Significance: These clubs enabled crucial storm victories and the mastery of thunder techniques throughout meteorological history.

Cultural Impact: Represent the power of natural forces and the effectiveness of weather-enhanced combat techniques.

Magical Craft: Demonstrates understanding of thunder magic and the complex processes required for sonic weapon enhancement.

Balancing Notes​

Introduction Timing: Appropriate for levels 6-14 when enhanced weapons become important and thunder damage provides significant advantages.

Campaign Impact: Provides useful combat enhancement balanced by attunement requirement and specific damage focus.

Storm Focus: Most valuable in campaigns featuring weather themes and storm-based encounters.

Encounter Design​

Recommended Challenges:

  • Thunder scenarios where sonic damage enables superior weapon effectiveness and crowd control
  • Storm encounters where weather enhancement provides tactical advantages and atmospheric combat
  • Crowd control challenges where knockdown effects determine battlefield success and tactical positioning
  • Weather mastery situations where thunder enhancement advances storm effectiveness and meteorological superiority

Thunder Adjustments: Encounters may need to account for enhanced crowd control capabilities and sonic damage effects.

Weather Items: Other items that enhance storm capabilities and provide thunder magic.

Sonic Equipment:

  • Items that improve thunder effectiveness and sonic capabilities
  • Equipment for weather enhancement and storm mastery
  • Tools for thunder magic and sonic development

Complementary Equipment: Items that enhance weather abilities or provide additional storm benefits.

Roleplay Opportunities​

Storm Mastery: Characters develop expertise in thunder techniques and weather enhancement.

Weather Leadership: Thunder capabilities create opportunities for leading storm missions and meteorological research.

Sonic Excellence: Thunder magic enables impressive demonstrations of weather mastery and storm superiority.