Rules edition: This player guide uses the 2014 Player’s Handbook Gnome and Wizard rules. It focuses on individual-scale encounters in a war campaign; the standard combat rules do not by themselves simulate entire armies. For Dungeon Master advice on running the character’s campaign, see our Gnome Wizard war-campaign guide. For a Rock Gnome build outside the military setting, see our 2014 Rock Gnome Wizard guide.
A Gnome Wizard can contribute to a war story through preparation, battlefield control, and information gathering, but the character is not automatically a commander or a substitute for the party. Decide with the DM how often the game will use ordinary encounters, scouting, negotiation, travel, and mass-combat scenes. Build for the adventures at your table rather than assuming every session is a battlefield.
Use the 2014 Gnome traits accurately
All Gnomes in the 2014 Player’s Handbook receive +2 Intelligence, Small size, a 25-foot walking speed, 60-foot Darkvision, and Gnome Cunning. The feature grants advantage on Intelligence, Wisdom, and Charisma saving throws against magic. It does not grant advantage on every save or resistance to spell damage. A Forest Gnome adds +1 Dexterity and the minor illusion cantrip; a Rock Gnome adds +1 Constitution, Artificer’s Lore, and Tinker.
Forest Gnome’s Dexterity can help with initiative and Dexterity-based defenses, while Rock Gnome’s Constitution can support hit points and concentration saves. Artificer’s Lore applies to a narrow category of Intelligence (History) checks. Tinker creates a small clockwork device from the options in the feature; neither trait automatically grants military expertise, tool proficiency, or a special combat effect. Ask the DM how an idea could be resolved before spending a turn or resource on it.
Prepare for the battle the campaign is actually running
Intelligence determines the Wizard’s spell attack bonus and save DC. Constitution helps with hit points and concentration saves, and Dexterity contributes to initiative and Armor Class. In the 2014 rules, the Wizard’s subclass begins at level 2, and class features arrive at the levels shown in that version’s table. Revised 2024 character creation changes species ability increases and Wizard subclass timing; do not mix those rules into this build.
Keep a spellbook with options for different objectives. An escape, defense, barrier, or information spell may be more useful than another damage spell when the goal is to hold a position or get allies out safely. A 2014 Wizard prepares spells from the spellbook each day, with the number based on Wizard level and Intelligence modifier; preparation is not the same as having spell slots. A Wizard can also cast an eligible ritual from the spellbook without preparing it, adding the ritual’s extra casting time.
Concentration is a real limit: you can maintain only one concentration spell at a time, and damage may force a Constitution save to maintain it. Coordinate with the party before committing to a control spell so allies know which areas or creatures it affects. Keep a plan for what to do if the spell ends or the target succeeds on its save.
Choose a Wizard tradition for your role
An Evoker can use Sculpt Spells to protect selected creatures when an Evocation spell affects them, but only within the feature’s stated conditions. A Diviner’s Portent can replace an attack roll, saving throw, or ability check made by a creature the Wizard can see; it can swing an important roll, but it does not guarantee a larger battle’s outcome. An Abjurer’s Arcane Ward is a pool of hit points, not temporary hit points. An Illusionist can support deception and concealment, but the effect depends on each spell’s text and the circumstances observers can perceive.
Other traditions from official supplements may be available if the DM allows those books. Compare each feature’s actual timing, range, and resource limit with the campaign’s rules. A subclass is a playstyle choice, not a promise that the character can solve every military problem alone.
Make tactical choices on your turn
Check line of sight, range, and who will be affected before casting an area spell. Friendly-fire protections, saving throws, and damage depend on the spell and subclass wording; a Fireball is not automatically harmless to allies. Use cover when the map and objects provide it, and remember that a Gnome’s Small size does not grant extra Armor Class or make the character invisible. The ordinary movement rules allow movement through a nonhostile creature’s space as difficult terrain, but the space cannot be occupied at the end of the move.
At a war table, talk through intentions with teammates: who is protecting a retreat, who is holding a chokepoint, and who is pursuing the objective? A Wizard may use a spell to create an opening, but another character may be better placed to carry a message, negotiate with a local leader, or protect a vulnerable ally. Share the spotlight and treat tactical plans as proposals that can change when the dice or enemy actions intervene.
Keep the character’s goals larger than winning battles
A military campaign can involve research, evacuation, diplomacy, medical support, or arguments over orders as well as combat. Decide what your character believes about the conflict and which lines they will not cross. A Gnome’s curiosity or a Wizard’s Intelligence score does not decide their politics or morality. Let the player’s choices—and the consequences established by the DM—shape the character’s role.
After each mission, update the plan. An enemy may change its defenses, an ally may need help, or new evidence may challenge what the party believed. Use the spellbook and the group’s knowledge to prepare, but do not assume a spell reveals facts outside its description or that the DM must follow a predetermined outcome.
Official Rules Sources
- D&D Basic Rules (2014): Races — Gnome traits
- D&D Basic Rules (2014): Classes — Wizard, spellbook, and Arcane Traditions
- D&D Basic Rules (2014): Spellcasting, rituals, and concentration
- D&D Basic Rules (2024): Character Origins — Gnome and backgrounds
- D&D Basic Rules (2024): Character Classes — Wizard
