Rules edition: This build uses the 2024 Gnome species and 2024 Barbarian class. It does not use 2014 Gnome subraces or the older Barbarian progression. The 2024 Gnome has no species-based ability-score increases; your background provides them.
A Gnome Barbarian can combine strong physical attacks with useful defenses against magic. Gnomish Cunning helps with three kinds of saving throws, while your Barbarian features support melee pressure, movement, and resilience. Choose your lineage and weapons for the campaign you are actually playing, rather than assuming a Small character must avoid powerful weapons.
Choose Forest or Rock Gnome for its utility
All 2024 Gnomes have 60-foot Darkvision and Advantage on Intelligence, Wisdom, and Charisma saving throws from Gnomish Cunning. This protection applies to those saving throws regardless of their cause; it does not grant Advantage on Strength, Dexterity, or Constitution saves, or protect you from attack rolls.
Forest Gnome grants the Minor Illusion cantrip and always prepares speak with animals. You can cast that spell without a spell slot a number of times equal to your Proficiency Bonus per Long Rest, or use spell slots if you have them. Rock Gnome grants mending and prestidigitation, and lets you spend 10 minutes using prestidigitation to create one of up to three tiny clockwork devices. Each device lasts up to eight hours and activates with a Bonus Action. Choose Intelligence, Wisdom, or Charisma as the spellcasting ability for your lineage spells when you select the lineage. Choose Forest for communication and illusion, or Rock for small practical effects and tinkering.
Neither lineage makes you a spellcasting class. While your Rage is active, you cannot cast spells or maintain Concentration, so use lineage spells outside combat or before a fight when the situation allows. A utility cantrip or prepared spell adds options; it does not replace your core combat plan.
Set ability scores through your background
Strength is your usual first priority for attacks and Rage damage. Constitution adds hit points and supports Unarmored Defense; Dexterity contributes to that Armor Class and Initiative. Wisdom helps with Perception and common saving throws. Intelligence and Charisma can reflect the character you want to play, though Gnomish Cunning already helps with saves using both abilities.
For one legal 27-point-buy example, assign Strength 15, Dexterity 14, Constitution 14, Intelligence 8, Wisdom 12, and Charisma 8 before background increases. The 2024 Soldier background allows increases to Strength, Dexterity, and Constitution; choose +2 Strength and +1 Constitution for final scores of 17, 14, 15, 8, 12, and 8. This is only one route. Pick another background and ability spread if its story or skills better fit your character.
Use weapon properties and Mastery together
Small size no longer imposes its own Disadvantage with Heavy weapons. Under the 2024 Heavy property, a melee Heavy weapon imposes Disadvantage if your Strength is below 13; a ranged Heavy weapon does so if your Dexterity is below 13. The example above meets the melee threshold. At Barbarian 1, choose two Simple or Martial Melee weapon types for Weapon Mastery; you can change one choice after a Long Rest.
A Greataxe is Heavy, deals 1d12 damage, and has Cleave mastery. A Greatsword is also Heavy and uses Graze, which can deal your attack ability modifier in damage when an attack misses. If you want a thrown option, a Javelin uses Strength and has the Slow mastery property. Read the full property and Mastery rules before building around a particular weapon; Heavy, Two-Handed, Versatile, Reach, and Light each work differently.
Plan around the 2024 Barbarian features
At level 1, Rage gives resistance to Bludgeoning, Piercing, and Slashing damage, adds Rage damage to qualifying Strength-based attacks, and grants Advantage on Strength checks and saves. It does not resist every damage type. Rage also prevents you from casting spells or maintaining Concentration. You can keep it going by attacking an enemy, forcing an enemy to make a saving throw, or spending a Bonus Action to extend it; that Bonus Action may compete with another feature you want to use.
Unarmored Defense sets your Armor Class to 10 + your Dexterity modifier + your Constitution modifier while you wear no armor; you can still use a Shield. Compare that total with armor available to your character before deciding what to carry. At level 2, Danger Sense gives Advantage on Dexterity saves unless you are Incapacitated, and Reckless Attack lets you gain Advantage on Strength-based attack rolls while giving attack rolls against you Advantage until your next turn.
At level 3, Primal Knowledge grants proficiency in another Barbarian skill; while raging, it also lets you use Strength for specified checks: Acrobatics, Intimidation, Perception, Stealth, and Survival. You also choose a Barbarian subclass at level 3, not level 1. The 2024 Player’s Handbook offers the Path of the Berserker, Path of the Wild Heart, Path of the World Tree, and Path of the Zealot. In broad terms, Berserker centers on fierce offense, Wild Heart on primal options, World Tree on protection and movement, and Zealot on divine or supernatural purpose. Check each subclass feature at its listed level and weigh its actions and resources against the rest of your turn.
At level 5, Extra Attack lets you attack twice when you take the Attack action, and Fast Movement increases your Speed while you are not wearing Heavy armor. Later features continue to add options, so use the 2024 class table rather than importing level timings from older Barbarian guides.
Give the build a purpose beyond damage
Decide what your Barbarian protects, what makes them lose patience, or what they do when a fight is not the best answer. A Forest Gnome might use illusion and animal speech to gather information; a Rock Gnome might bring a small device to solve a practical obstacle. Those choices can shape the character without turning lineage into a personality rule. For a shorter, session-ready concept, see the Gnome Barbarian one-shot guide.
Official Rules Sources
- D&D Beyond Basic Rules (2024): Gnome species and lineages
- D&D Beyond Basic Rules (2024): backgrounds and ability scores
- D&D Beyond Basic Rules (2024): Barbarian features and progression
- D&D Beyond Basic Rules (2024): weapon properties and Mastery
- D&D Beyond Player’s Handbook (2024): all four Barbarian subclasses
