Rules edition: Legacy 2014 Forest Gnome (Player’s Handbook) with the 2014 Rogue. This build uses the original fixed ability increases; optional Tasha’s Cauldron of Everything character options are identified separately. It is not a 2024 Gnome Rogue build.
A Forest Gnome Rogue combines the legacy gnome’s illusion and animal-communication features with a class built around Dexterity, skills, and positioning. The strongest version is not automatically an Arcane Trickster: choose a subclass for the campaign you actually play, and treat Minor Illusion and Speak with Small Beasts as flexible tools rather than guarantees of stealth or information.
What a legacy Forest Gnome provides
The 2014 gnome traits give you +2 Intelligence, Small size, 25-foot walking speed, 60-foot darkvision, and Gnome Cunning: advantage on Intelligence, Wisdom, and Charisma saving throws against magic. Forest Gnome adds +1 Dexterity, Natural Illusionist (the Minor Illusion cantrip), and Speak with Small Beasts. These fixed increases are the legacy rules; the revised 2024 character-creation rules use background-based ability increases instead.
Small size does not grant advantage on Stealth checks or let you hide behind any object automatically. You still need to meet the normal hiding requirements and have suitable concealment. It also matters when choosing equipment: a Small character has disadvantage on attack rolls with heavy weapons, so a finesse weapon, shortbow, or another suitable non-heavy weapon is usually a cleaner fit.
Use the Forest Gnome features within their limits
Minor Illusion
Minor Illusion can create a sound or a small static image of an object, not both at once. It lasts up to 1 minute and requires no concentration. It can distract a guard, suggest a hiding place, or create a sound elsewhere, but an image is not solid cover and cannot block movement or attacks. A creature can expose the image by physically interacting with it, or use its action to examine it and make an Intelligence (Investigation) check against your spell save DC.
Speak with Small Beasts
Through sounds and gestures, you can communicate simple ideas with Small or smaller beasts. This can support a conversation with a mouse or bird, but it does not make animals reliable scouts, reveal facts they could not perceive, or compel them to help. Their limited awareness and any response remain part of the situation and the DM’s adjudication.
Gnome Cunning
Gnome Cunning applies to Intelligence, Wisdom, and Charisma saving throws against magic; it is not advantage on every mental save or every fear, charm, or control effect. Your Rogue already has proficiency in Dexterity and Intelligence saving throws. At Rogue 15, Slippery Mind adds Wisdom-save proficiency, which can complement Gnome Cunning when the save is against magic.
Choose a Rogue archetype for the campaign
In the 2014 Rogue class, you choose a Roguish Archetype at level 3. The 2014 Player’s Handbook includes Thief and Arcane Trickster; other supplements add options such as Scout (Xanathar’s Guide to Everything) and Inquisitive. Subclass features arrive at Rogue levels 3, 9, 13, and 17, so do not plan around later features as if they arrive early.
Arcane Trickster: magic and misdirection
Arcane Trickster is the most direct fit for a character who wants more illusion magic, but it is not the only effective choice. At Rogue 3, the archetype grants Mage Hand Legerdemain and spellcasting. You know Mage Hand and two other wizard cantrips, plus three 1st-level wizard spells; two must be from enchantment or illusion, while the third can come from any school. Find Familiar can therefore be one of those unrestricted choices. A familiar can take the Help action to assist an attack when it is in position, but it cannot attack, acts on its own initiative, and can be targeted. Advantage still does not bypass Sneak Attack’s finesse-or-ranged-weapon requirement or its once-per-turn limit.
For later features, Magical Ambush arrives at Rogue 9, Versatile Trickster at 13, and Spell Thief at 17. Intelligence supports your Arcane Trickster spell save DC and spell attacks, but many Rogue turns still depend more on Dexterity, positioning, and skill choices than on a high Intelligence score.
Other options
A Thief suits a mobile infiltrator and gains Fast Hands and Second-Story Work at level 3. A Scout leans into wilderness expertise: Survivalist at level 3 grants proficiency in both Nature and Survival and doubles your proficiency bonus on checks using either proficiency; Skirmisher is a separate reaction-based repositioning feature. An Inquisitive rewards reading opponents and investigative play. Assassin is not a required “surprise-round” build: Assassinate rewards acting before a target and grants critical hits against creatures that are surprised, but the DM determines surprise under the encounter rules.
Ability scores and advancement
Prioritize Dexterity for attacks with finesse and ranged weapons, Armor Class in light armor, initiative, and common Rogue skills. The legacy +1 Dexterity helps, but it does not replace a strong starting score. Put Intelligence next if you plan to use Arcane Trickster spells or Investigation; otherwise, Constitution and Wisdom may better support survival and perception. A sample point-buy direction is Dexterity 15, Intelligence 14, Constitution 13, Wisdom 12, Charisma 10, Strength 8 before the legacy increases, producing Dexterity 16 and Intelligence 16.
At Rogue 4 and later Ability Score Improvement levels, raising Dexterity is a reliable choice. If you use feats, remember that feats are an optional 2014 rule and usually replace an Ability Score Improvement. Resilient (Constitution) can help with Constitution saves and concentration; Resilient (Dexterity) is usually redundant because Rogues already have Dexterity-save proficiency. Lucky offers three luck points per long rest, but it lets you influence specified d20 rolls—it does not guarantee a hit or a critical Sneak Attack. Observant improves passive Perception and Investigation; it does not automatically reveal every hidden creature, trap, or door. Shadow Touched is an optional Tasha’s feat: it increases Intelligence, Wisdom, or Charisma (not Dexterity) and grants its listed spells.
Skills, background, and play loop
Use Rogue skill choices and Expertise to cover the party’s actual gaps. Stealth, Perception, Investigation, Sleight of Hand, and thieves’ tools are common picks, but no single list is mandatory. Criminal, Urchin, Outlander, and Sage are 2014 background options with different proficiencies and features. For example, Urchin’s City Secrets doubles travel speed between locations in a city while out of combat; it does not increase combat speed. Outlander’s Wanderer can help find food and water in suitable terrain, subject to the feature’s conditions.
In combat, look for Sneak Attack once on each turn: hit with a finesse or ranged weapon while you have advantage, or meet the nearby-enemy condition without disadvantage. Minor Illusion may create a distraction or draw attention away from your route, while Cunning Action can let you Dash, Disengage, or Hide as a bonus action. The cantrip does not itself make you hidden, grant advantage, or provide physical cover. Outside combat, combine Expertise with careful questions and animal conversations, then let the DM determine what a particular beast knows and whether it is willing to help.
Multiclassing is optional
Multiclassing delays Rogue features and Sneak Attack progression and requires the relevant ability scores. A Wizard or Artificer dip may fit an Intelligence-focused concept, but it does not automatically make the character stronger; spell access, class level, action economy, and the multiclass spell-slot rules all matter. Compare the trade against staying Rogue, especially if you want higher-level archetype features. For the core class, see our 2014 Rogue guide.
If you are using the revised rules, start from the separate 2024 Forest Gnome Rogue build instead. Its lineage, background ability increases, and Rogue progression are not interchangeable with this legacy build. The companion 2024 exploration guide focuses on scouting procedure rather than replacing the build.
Official Rules Sources
- D&D Beyond Basic Rules (2014): Races — gnome and Forest Gnome traits.
- D&D Beyond Basic Rules (2014): Classes — Rogue proficiencies, Sneak Attack, Cunning Action, and class progression.
- D&D Beyond Basic Rules (2014): Spells — Minor Illusion and spell rules.
- D&D Beyond: Player’s Handbook (2014) — Arcane Trickster and other Player’s Handbook options.
- D&D Beyond: Xanathar’s Guide to Everything — Scout archetype.
- D&D Beyond: Tasha’s Cauldron of Everything — optional origin customization and feats.
- D&D Beyond Basic Rules (2024): Character Origins — revised character-creation comparison.
