
The Storm-Vein Cleaver is a Rare DnD 5e magic greataxe (+1) that triggers chain lightning on critical hits and releases a thunderous 15-foot cone attack. It includes free Foundry VTT integration for homebrew campaigns.
✨ Item Overview
The Storm-Vein Cleaver is a formidable greataxe designed for front-line warriors who want to control the battlefield with elemental fury. Its blades are crafted from weathered sky-iron, etched with deep grooves that pulse with internal heat. While most magical weapons offer simple utility, the Cleaver is a high-impact tool of destruction that excels when the wielder is surrounded. The purple amethysts embedded in the head serve as capacitors, storing the kinetic energy of every swing until it overflows in a display of jagged electricity.
How to Use it in Play
Mechanically, this axe rewards players who fish for critical hits. The Crackling Fracture ability allows for excellent ‘cleave’ damage without requiring extra actions, making it perfect for thinning out mobs of low-HP minions. When the party finds themselves pinned down, the Thunderclap Overhead provides a much-needed reset, knocking enemies prone and creating an opening for escape or a follow-up assault. However, players must be cautious of the inherent instability of the weapon’s power source.
- Crowd Control: Use the cone effect to peel enemies off of your spellcasters.
- Critical Hunting: Synergizes well with features like Reckless Attack or Champion fighter bonuses.
- Risk Management: Keep an eye on your own hit points, as the weapon’s feedback is unforgiving.
Let the thunder of your strikes herald the end of your enemies’ resolve.
🔑 Key Facts
- Item Type: Weapon (greataxe), Rare rarity
- Requires attunement by a creature
- Grants a +1 bonus to attack and damage rolls
- Crackling Fracture: Deals 2d6 lightning damage to nearby enemies on a roll of 19-20
- Thunderclap Overhead: 15-foot cone dealing 3d8 thunder damage and knocking targets prone
- Drawback: User takes 2d6 lightning damage upon activating Thunderclap Overhead
- Recharges Thunderclap ability after a short rest
- Free Foundry VTT / VTT digital file included
📜 Item Stats
| Type | Weapon (greataxe) |
| Rarity | Rare |
| Attunement | Required |
| Attack Bonus | +1 |
| Damage | 1d12 + 1 slashing |
| Crackling Fracture | When you roll a 19 or 20 on an attack roll with this weapon, a bolt of lightning leaps from the blade to a different creature of your choice within 10 feet, dealing 2d6 lightning damage. |
| Thunderclap Overhead | Once per short rest, you can use an action to slam the axe into the ground. Each creature within a 15-foot cone must succeed on a DC 15 Strength saving throw or take 3d8 thunder damage and be knocked prone. |
The Storm-Vein Cleaver was forged at the High-Peak Foundry during the Year of the Blue Bolt to execute giants. It was last carried by Thane Bragor Stone-Skin, who was found as a pile of ash after holding a mountain pass against a legion of orcs. When gripped, the axe emits a low, vibrating hum like a distant thunderstorm and smells strongly of ozone and wet granite.
🎲 Free Magic Items for DnD
Want to use Storm-Vein Cleaver in your campaign? Download the free token below — perfect for VTTs like Roll20 or Foundry, or print it out for your table!

⬇️ Download for Foundry VTT
Download the JSON File for easy Foundry VTT Import.
How it works:
1. Download Zip File
2. Unzip File
3. Create Item in Foundry (Equipment / Weapon etc.) and Right Click on the Item: Import Data → Select the JSON File.
Enjoy your free Item created by RuneForge Studio.
⬇️ Download ZIP for Foundry VTT
Download the Item Image above and save it to add a cool Design to your Foundry Item. Follow on Social Media to stay up to date.
❓ Frequently Asked Questions
What are the best dnd 5e magic greataxes for martial classes?
The Storm-Vein Cleaver is a top-tier rare greataxe for martial classes like Barbarians and Fighters, offering both single-target lightning damage on crits and area-of-effect thunder damage.
How do I use the Storm-Vein Cleaver in Foundry VTT?
Download the free VTT file provided and use the ‘Import Data’ function in Foundry VTT to add the Storm-Vein Cleaver directly to your item compendium or character sheet.
Does the Storm-Vein Cleaver deal self-damage?
Yes. While powerful, the wielder takes 2d6 lightning damage every time they activate the Thunderclap Overhead ability due to violent electrical feedback.
How does the lightning damage work on a critical hit?
When you roll a 19 or 20, a bolt of lightning leaps from the blade to a creature of your choice within 10 feet, dealing 2d6 lightning damage automatically.
📖 Related Articles
- best dnd 5e homebrew weapons — A collection of balanced magic items for Dungeon Masters.
- Foundry VTT item import guide — Tutorial on how to add custom items and weapons to virtual tabletops.
- Barbarian magic item tier list — Comparison of greataxes and heavy weapons for martial builds.

