# Forged Foundations ### A Structured Crafting & Material System for Fifth Edition --- Part of **The Arsenal Series** Written & Designed by Sordia Vignti Compatible with the fifth edition of the world’s most popular roleplaying game. --- # The Arsenal Series The Arsenal Series presents structured fifth edition expansions built around deliberate systems, meaningful choice, and long-term campaign integration. Each title introduces a complete gameplay framework designed to integrate cleanly with existing fifth edition rules while preserving bounded accuracy, encounter balance, and class identity. Every title functions independently. Together, they form a unified design philosophy focused on: - Horizontal progression over raw escalation - Tactical identity through construction - Structured mechanical clarity - Campaign-scale integration - Controlled power ceilings ## Current Titles - Arcane Arsenal - Forged Foundations Future volumes will continue expanding structured subsystems without escalating beyond fifth edition design expectations. --- # Credits ## Design & Development Sordia Vignti ## Editing & Layout Sordia Vignti ## System Consultation Community Playtesters ## Playtesting The Arsenal Series Playtest Group --- # Legal Forged Foundations © 2026 Sordia Vignti. Dungeons & Dragons, D&D, Wizards of the Coast, Dungeon Masters Guild, the Dungeon Masters Guild logo, and all related trademarks are property of Wizards of the Coast LLC and are used with permission. This work contains material that is © Wizards of the Coast and/or other authors. Such material is used with permission under the Dungeon Masters Guild Community Content Agreement. All other original material in this work is © 2026 Sordia Vignti. This product is not affiliated with, endorsed, sponsored, or specifically approved by Wizards of the Coast LLC. --- # Introduction ## Philosophy of Crafted Weapons In many campaigns, weapons follow a predictable path. A sword is replaced not because its story ends, but because a stronger bonus becomes available. Progression becomes linear. Equipment becomes disposable. Forged Foundations replaces that model. This system treats crafted weapons as deliberate instruments shaped through material choice, forge capability, tempering methods, coatings, and narrative investment. A crafted weapon is not defined by simple escalation. It is defined by construction. --- ## Design Intent Forged Foundations is built around five core principles. ### 1. Materials Create Identity Materials should change behaviour and purpose, not simply increase damage. ### 2. Preparation Matters The right weapon for the right threat should matter more than raw numerical scaling. ### 3. Craftsmanship Has Limits Every enhancement obeys strict structural constraints and bounded accuracy. ### 4. Magic Remains Distinct Forged weapons complement magical weapons rather than replacing them. ### 5. Dungeon Masters Retain Control Rare materials, advanced forges, and legendary crafting remain narrative assets rather than market commodities. --- ## What This System Is Forged Foundations is: - A structured crafting framework - A material-based weapon system - A modular enhancement system - A downtime-integrated subsystem - A horizontal progression framework --- ## What This System Is Not Forged Foundations is not: - A full economic simulator - A replacement for magical weapons - A system for infinite scaling - A realism simulator - A replacement for class features --- ## Campaign Integration ### Low Fantasy Campaigns Restrict Masterwork and Legendary forge access. ### High Fantasy Campaigns Allow advanced materials through factions, guilds, and narrative access. ### Gritty Campaigns Enable Structural Integrity and Advanced Failure modules. ### Epic Campaigns Use the full Legendary Forging and Relic Construction framework. --- # Universal Balance Rules These rules govern all enhancements within Forged Foundations. --- - Enhancements never grant scaling attack bonuses. - Enhancements never grant additional attacks unless explicitly stated. - Enhancements never multiply damage dice. - Only one enhancement of the same type applies at a time. - Only one Core Material may be applied. - Only one Tempering may be applied. - Only one Coating may be active at a time. - Crafted weapons cannot exceed the effective power of a +3 magical weapon outside Legendary Relic construction. - Material resistance bypass never ignores immunity unless explicitly stated. - If two rules conflict, the more specific rule overrides the more general rule. --- # Chapter 1: Core Framework ## The Four-Layer Weapon Model Every enhanced weapon in Forged Foundations is defined through four independent layers. --- ### 1. Core Material The primary substance used to construct the weapon. A weapon may possess only one Core Material. Core Materials determine: - Resistance interaction - Structural properties - Material-specific effects - Narrative identity --- ### 2. Permanent Tempering A refining treatment applied after forging. Tempering modifies: - Damage behaviour - Handling characteristics - Resonance properties - Precision traits A weapon may possess one Tempering. --- ### 3. Temporary Coating A consumable treatment applied to the weapon. Coatings: - Are temporary - Do not permanently alter the weapon - Never stack with other coatings Unless stated otherwise, applying a coating requires 1 minute. --- ### 4. Weapon State A weapon always exists in one of two states. |State|Effect| |---|---| |Mundane|Uses all material and tempering rules normally| |Magical|Counts as magical for overcoming resistance and immunity| --- ## Material Supersession Rule If a weapon becomes magical, it no longer benefits from material-based resistance bypass that specifically applies to nonmagical damage. However, it still counts as its material for creatures that explicitly require that material. The following continue functioning on magical weapons: - Tempering bonuses - Critical hit effects - Structural properties - Narrative interactions - Explicit conditional effects --- ## Example Weapon Construction ### Gravewarden Longsword **Base Weapon:** Longsword **Core Material:** Grave-Steel **Tempering:** Frost-Tempered **Coating:** Ash Resin **Weapon State:** Mundane --- ### Final Effects - Ignores undead necrotic resistance - Deals +1 cold damage - Counts as Grave-Steel for narrative interactions --- ## Stacking Hierarchy 1. One Core Material 2. One Tempering 3. One Coating 4. Different layers stack unless explicitly restricted 5. Identical effect types do not stack --- ## Power Ceiling Doctrine Forged Foundations obeys a strict power ceiling. No crafted weapon may exceed the effective power of a +3 magical weapon outside Legendary Forge construction. This doctrine preserves: - Bounded accuracy - Encounter balance - Class identity - Equipment progression integrity --- # Chapter 2: Materials ## Material Categories Materials are divided into four major categories. |Category|Typical Role| |---|---| |Folk Materials|Traditional anti-creature materials| |Military Materials|Structural and battlefield materials| |Ritual Materials|Ceremonial and specialised materials| |Relic Materials|Mythic and legendary substances| --- # Folk Materials ## Silvered Traditional anti-curse weapon treatment. --- ### Mechanical Properties A silvered weapon counts as silvered for overcoming resistances and immunities that specifically require silvered weapons. Silvered weapons are nonmagical. --- ### Forge Requirement Enhanced Forge --- ### Compatibility Compatible with: - Fire-Forged - Frost-Tempered - Echo-Tempered Forbidden with: - Cold Iron --- ### Example Weapon ### Silvered Longsword Counts as silvered for creatures vulnerable to silvered weapons. --- ## Cold Iron Untempered iron traditionally used against Fey. --- ### Mechanical Properties Ignores resistance to nonmagical bludgeoning, piercing, and slashing damage granted by Fey creatures. Does not bypass immunity. --- ### Forge Requirement Advanced Forge --- ### Compatibility Forbidden with: - All Tempering - Silvered - Dragonbone --- ### Example Weapon ### Cold Iron Spear Ignores Fey resistance to nonmagical weapon damage. --- ## Mithral Lightweight alloy associated with elven and deep-dwarven craftsmanship. --- ### Mechanical Properties - Weight halved - Ignores Heavy property - Small creatures ignore Heavy disadvantage --- ### Forge Requirement Advanced Forge --- ### Example Weapon ### Mithral Greatsword This weapon loses the Heavy property. --- # Military Materials ## Adamantine Siege-grade alloy designed for structural destruction. --- ### Mechanical Properties Any hit against an object becomes a critical hit. --- ### Forge Requirement Masterwork Forge --- ### Example Weapon ### Adamantine Warhammer Automatically critically hits objects. --- ## Storm-Wrought Iron Lightning-refined alloy forged beneath sustained storms. --- ### Mechanical Properties When you roll maximum damage on a weapon damage die, deal 1 additional lightning damage. --- ### Forge Requirement Advanced Forge --- ### Example Weapon ### Storm-Wrought Battleaxe Deals additional lightning damage on maximum damage rolls. --- ## Leviathan Bone Bone harvested from colossal deep-sea creatures. --- ### Mechanical Properties - No disadvantage underwater - +1 damage underwater --- ### Forge Requirement Advanced Forge --- ### Example Weapon ### Leviathan Harpoon Built for underwater combat. --- # Ritual Materials ## Dawnsteel Consecrated radiant alloy used against undead. --- ### Mechanical Properties Undead struck by this weapon cannot regain hit points until the start of your next turn. --- ### Forge Requirement Masterwork Forge --- ### Example Weapon ### Dawnsteel Mace Suppresses undead healing. --- ## Grave-Steel Ash-treated funerary iron associated with necromantic wars. --- ### Mechanical Properties Ignores necrotic resistance granted by undead creatures. --- ### Forge Requirement Masterwork Forge --- ### Example Weapon ### Gravewarden Blade Designed for undead suppression. --- ## Feyglass Crystalline material cultivated in Fey-touched groves. --- ### Mechanical Properties Critical hits reduce target speed by 10 feet. Natural 1 attack rolls generate fractures. At two fractures, the weapon shatters. --- ### Forge Requirement Masterwork Forge --- ### Example Weapon ### Feyglass Rapier Precision duelling weapon. --- # Relic Materials ## Star-Metal Meteoric alloy infused with extraplanar force. --- ### Mechanical Properties Ignores resistance to nonmagical weapon damage granted by creatures native to the Material Plane. --- ### Forge Requirement Legendary Forge --- ### Example Weapon ### Star-Metal Executioner Designed to combat extraplanar corruption. --- # Material Summary Table |Material|Primary Role| |---|---| |Silvered|Anti-lycanthrope| |Cold Iron|Anti-Fey| |Mithral|Mobility| |Adamantine|Structural destruction| |Storm-Wrought|Lightning pressure| |Leviathan Bone|Underwater combat| |Dawnsteel|Anti-undead healing| |Grave-Steel|Necrotic suppression| |Feyglass|Precision critical effects| |Star-Metal|Anti-planar resistance| --- # Chapter 3: Tempering & Treatments ## Tempering Categories |Category|Focus| |---|---| |Offensive Tempering|Damage conversion and pressure| |Ritual Tempering|Consecration and sacrifice| |Precision Tempering|Accuracy and handling| --- # Offensive Tempering ## Fire-Forged ### Effect Deals 1 additional fire damage. ### Restrictions Cannot combine with Frost-Tempered. --- ## Frost-Tempered ### Effect Deals 1 additional cold damage. ### Restrictions Cannot combine with Fire-Forged. --- ## Storm-Hardened ### Effect Deals 1 additional lightning damage against creatures wearing metal armour. --- # Ritual Tempering ## Blood-Quenched ### Effect When you reduce a creature to 0 hit points, gain 1 temporary hit point. --- ## Sanctified Edge ### Effect Deals 1 additional radiant damage against undead and fiends. --- # Precision Tempering ## Echo-Tempered ### Effect Reroll one weapon damage die showing a 1 once per turn. --- ## Void-Coated ### Effect Gain +1 to Dexterity (Stealth) checks made to conceal the weapon. --- # Tempering Summary Table |Tempering|Effect|Restriction| |---|---|---| |Fire-Forged|+1 fire|No Frost| |Frost-Tempered|+1 cold|No Fire| |Storm-Hardened|+1 lightning vs armour|No Dragonbone| |Blood-Quenched|Temp HP on kill|No Dawnsteel| |Sanctified Edge|+1 radiant vs undead/fiends|No Blood-Quenched| |Echo-Tempered|Reroll 1 damage die|No Feyglass| |Void-Coated|+1 concealment|No Fire-Forged| --- # Chapter 4: Forges & Workshops ## Forge Tiers |Forge Tier|Capabilities| |---|---| |Standard|Mundane weapons| |Enhanced|Silvering and basic tempering| |Advanced|Rare alloys and specialist shaping| |Masterwork|Elite materials and ritual refinement| |Legendary|Relic and mythic forging| --- ## Example Forge Traditions ### Ironroot Citadel **Forge Type:** Masterwork Forge **Specialisation:** Adamantine and siege weapons **Forge Trait:** Structural Perfection Weapons forged here gain +2 Integrity. --- ### Glassgrove Artisan Hall **Forge Type:** Masterwork Forge **Specialisation:** Feyglass refinement **Forge Trait:** Harmonic Resonance Echo-Tempered weapons reroll 1s and 2s. --- ### Ash Sanctum **Forge Type:** Consecrated Forge **Specialisation:** Dawnsteel **Forge Trait:** Radiant Consecration Dawnsteel weapons emit faint radiant light. --- ## Forge Availability by Region |Region Type|Typical Forge Tier| |---|---| |Village|Standard| |Trade City|Enhanced| |Dwarven Hold|Advanced| |Royal Capital|Masterwork| |Mythic Site|Legendary| --- # Chapter 5: Crafting Procedures ## Core Crafting Procedure Crafting requires: - Appropriate forge access - Smith's Tools proficiency - Material cost - Downtime - Crafting check --- ## Downtime Summary |Tier|Downtime| |---|---| |Minor|5 days| |Major|10 days| |Superior|20 days| |Relic|Quest-based| --- ## Crafting DCs |Tier|DC| |---|---| |Minor|12| |Major|15| |Superior|17| |Relic|20| --- ## Example Crafting Process ### Crafting a Storm-Wrought Battleaxe ### Step 1 — Acquire Material Requires Storm-Wrought Iron. ### Step 2 — Access Forge Requires Advanced Forge. ### Step 3 — Select Tempering Fire-Forged selected. ### Step 4 — Downtime Major Tier — 10 days. ### Step 5 — Crafting Check Smith's Tools DC 15. ### Step 6 — Final Weapon Storm-Wrought Battleaxe - Additional lightning damage on maximum damage rolls - +1 fire damage --- ## Crafting Failure Results |Result|Outcome| |---|---| |Success|Item completed| |Fail by 1–4|+25% downtime| |Fail by 5+|Gain 1 Flaw| |Natural 1|Major flaw and repair required| --- # Chapter 6: Weapon Packages ## Example Crafted Weapons ### Gravewarden Blade **Role:** Undead suppression **Core Material:** Grave-Steel **Tempering:** Frost-Tempered **Coating:** Ash Resin ### Strengths - Anti-undead pressure - Reliable elemental damage - Necrotic resistance interaction ### Weaknesses - Limited utility outside undead encounters - No structural utility --- ### Feyhunter Spear **Role:** Anti-Fey pursuit **Core Material:** Cold Iron **Tempering:** None **Coating:** Moon Oil ### Strengths - Exceptional against Fey - Lightweight field weapon ### Weaknesses - No tempering access - Weak against non-Fey enemies --- ### Leviathan Harpoon **Role:** Naval warfare **Core Material:** Leviathan Bone **Tempering:** Storm-Hardened ### Strengths - Underwater dominance - Reliable against aquatic threats ### Weaknesses - Situational outside maritime campaigns --- ### Dawnfire Warhammer **Role:** Fiend and undead assault **Core Material:** Dawnsteel **Tempering:** Fire-Forged ### Strengths - Strong radiant pressure - Anti-healing utility ### Weaknesses - Less effective against living targets --- # Chapter 7: Legendary Forging ## Legendary Forge Qualification A Relic weapon requires: 1. Legendary Forge access 2. Narrative catalyst 3. Ritual containment 4. Rare material investment 5. Relic stabilisation checks --- ## Relic Construction Requirements ### Required Components - Legendary forge - Ritual specialist - Rare material - Narrative catalyst - 30 days downtime - 1,000 gp ritual cost minimum --- ## Relic Traits ### Celestial Severance Undead struck by this weapon cannot regain hit points for 1 minute. Once per long rest. --- ### Storm Unleashed Critical hits arc lightning to nearby creatures. Once per short rest. --- ## Example Relics ### Star-Metal Executioner Relic greatsword forged within a Meteoric Vault. ### Dawnsteel Redeemer Consecrated anti-undead mace. ### Dragonbone Storm Pike Lightning-infused relic pike. --- # Chapter 8: Optional Rules ## Structural Integrity Enhanced weapons gain Integrity points. Integrity is reduced through: - Natural 1 attack rolls - Forge hazards - Structural stress At 0 Integrity: - Weapon gains a Major Flaw - Requires repair --- ## Time Pressure Crafting - Downtime halved - DC increased by 2 - Greater failure risk --- ## Cooperative Crafting Additional proficient smiths: - Reduce downtime - Improve crafting efficiency --- ## Forge Hazards Masterwork and Legendary forging may generate: - Structural contamination - Ritual backlash - Quenching fractures - Material destabilisation --- # Chapter 9: Dungeon Master Integration ## Establishing Tone Determine whether forged weapons are: - Rare relics - Military equipment - Guild-controlled assets - Sacred ceremonial weapons - Experimental technologies --- ## Controlling Availability Balance access through: - Forge scarcity - Material rarity - Political restrictions - Guild oversight - Narrative access --- ## Material Availability by Campaign Tier |Tier|Typical Material Access| |---|---| |Tier 1|Silvered| |Tier 2|Mithral, Cold Iron| |Tier 3|Adamantine, Dawnsteel| |Tier 4|Star-Metal, Dragonbone| --- ## Example Smith NPCs ### Guild Smith +6 Smith's Tools ### Master Smith +8 Smith's Tools ### Legendary Smith +10 Smith's Tools --- # Appendix A: Material Summary |Material|Forge Tier|Primary Effect| |---|---|---| |Silvered|Enhanced|Anti-lycanthrope| |Cold Iron|Advanced|Anti-Fey| |Mithral|Advanced|Mobility| |Adamantine|Masterwork|Structural destruction| |Dawnsteel|Masterwork|Anti-undead healing| |Grave-Steel|Masterwork|Necrotic suppression| |Feyglass|Masterwork|Critical control| |Star-Metal|Legendary|Anti-planar resistance| --- # Appendix B: Tempering Summary |Tempering|Effect| |---|---| |Fire-Forged|+1 fire| |Frost-Tempered|+1 cold| |Storm-Hardened|+1 lightning| |Sanctified Edge|+1 radiant| |Echo-Tempered|Reroll damage die| --- # Appendix C: Compatibility Matrix |Material|Fire|Frost|Storm|Sanctified| |---|---|---|---|---| |Silvered|✔|✔|✔|✔| |Cold Iron|✖|✖|✖|✖| |Dawnsteel|✔|✔|✔|✔| |Grave-Steel|✖|✔|✔|✖| |Feyglass|✖|✔|✔|✔| --- # Appendix D: Crafted Weapon Record Sheet ## Weapon Profile ### Weapon Name --- ### Base Weapon --- ### Core Material --- ### Tempering --- ### Coating --- ### Weapon State Mundane / Magical --- ## Crafting Data ### Forge Used --- ### Smith --- ### Crafting DC --- ### Downtime --- --- ## Integrity Tracking Current Integrity: --- --- ## Flaws & Notes --- --- --- --- # Closing Statement Forged Foundations presents crafted weapons as instruments of deliberate design rather than disposable escalation. A forged weapon is not defined by simple numerical superiority. Its strength emerges through material choice, forge capability, tempering discipline, and the intent behind its construction. Every enhancement represents a trade-off. Every forge reflects a tradition. Every weapon tells the story of the hands that shaped it. Build with purpose. Forge with intention. Let craftsmanship define legacy.