Dungeons & Dragons 5th edition War Magic is a wizard archetype focused on battlefield control, durability, and flexible spellcasting in combat. This guide explains the subclass for players and DMs, covering when you gain its features, how they function in play, and how to use them effectively.
What Is War Magic in D&D 5e
War Magic is a Level 2 Wizard archetype that emphasizes concentration-heavy utility and defensive spells combined with controlled burst damage. It is designed for players who want a versatile caster that can protect allies, disrupt enemy actions, and still contribute damage each turn.
War Magic Features at a Glance
The subclass defines progression, spell access, and key features that scale with level. Core design intent is to reward smart positioning, concentration management, and thoughtful action choices.
| Level | Feature | Key Benefit |
|---|---|---|
| 2 | War Magic | Defensive wizardry and controlled blasting |
| 6 | Improved War Magic | Cast multiple cantrips and one leveled spell while concentrating |
| 10 | War Mage | Use movement and opportunity attacks to protect yourself and concentrate |
| 14 | Potent Cantrip | Apply ability modifiers to cantrip damage |
Bonus Proficiencies at Level 2
You gain proficiency with light armor and one martial weapon, improving survivability when caught at range or in melee. This supports a playstyle that values mobility and reaction actions, especially when defending squishier allies.
Improved War Magic at Level 6
While concentrating on a spell, you can cast a cantrip as a bonus action on the same turn. You may also cast a leveled spell using a spell slot, letting you maintain defense while still advancing your role in an encounter.
War Mage at Level 10
When you take the Attack action on your turn, you can make a melee spell attack as a bonus action. Using the Attack action to provoke opportunity attacks also lets you cast a cantrip as a reaction, giving you more tactical options while protecting concentration.
Potent Cantrip at Level 14
For the first time on a turn that you apply a cantrip’s effect, you can add your ability modifier to the damage roll. This simple change significantly increases the long-term value of cantrips like fire bolt and shocking grasp.
Concentration Management and Utility Choices
War Magic encourages stacking defenses, opening with shield and following up with mage armor or protection from evil and good. It rewards timing, with features like Reaction-based countermeasures and controlled zones. Choose your leveled spells to support these roles rather than favoring raw damage only.
Action Economy Examples
Below are common turn patterns that show how Improved War Magic and War Mage interact with concentration. Costs assume a standard action economy and do not include possible reactions from allies or enemies.
- Bonus-action cantrip + leveled spell while concentrating (Level 6+)
- Attack action provokes opportunity attack, cast cantrip as reaction (Level 10+)
- Shield at the start of your turn + provide cover for allies
Optimizing Spell Selection
Focus on concentration spells that provide defense, control, or battlefield information. Support your party by maintaining protective effects and using counterspell reactively. Cantrips should scale reliably, so consider fire bolt, shocking grasp, or booming blade to benefit from Potent Cantrip.
Defensive Concentration Spells
- Shield: Raise AC instantly, often the best first reaction
- Mage Armor: Sustain concentration to maintain AC bonus
- Protection from Evil and Good: Protect a single ally from specific damage types
Control and Zoning Spells
- Web: Difficult terrain and restrained targets in an area
- Hypnotic Pattern: Non-combat or light-combat crowd control
- Stoneskin: Mitigate incoming damage at higher levels when concentration is supported
Counterspell and Defensive Tactics
Use your expertise to protect spellcasters and maintain concentration on key effects. Timing, communication, and awareness of enemy capabilities are more valuable than raw spell level. Position with shield and use War Mage reactions to deter melee threats while you work.
Combat Timing and Positioning
War Magic shines when you manage turns proactively: cast shield on your turn or when threatened, then use bonus-action cantrips and leveled spells while keeping concentration. Avoid unnecessary movement that provokes opportunity attacks, and coordinate with martials to maximize your defensive impact.
Frequently Asked Questions
- Can War Magic cast two leveled spell slots in one turn? No; with Improved War Magic you may cast one leveled spell or one cantrip as a bonus action while concentrating, not two leveled spells.
- Does Potent Cantrip apply to leveled spell damage? No; it applies only to damage from cantrips, and only on the first time you apply the effect on a turn.
- Is War Magic good for newer players? Yes; it teaches concentration management and tactical positioning while remaining flexible across many playstyles.
- Which concentration spells should I avoid? Spells that require concentration and limit movement or action economy too severely can be risky in melee-heavy encounters; choose spells you can reliably maintain.
Final Thoughts on War Magic
War Magic is a long-term investment in control, defense, and consistent damage. When used well, it supports the party, frustrates enemies, and remains effective from low tier to high tier. Align your spell choices with party needs, track concentration carefully, and use your reactions to stay relevant in dynamic combat.
Whether you are new to wizard or experienced with control builds, War Magic offers durable value that scales well into higher tiers. Revisit your spell list as you gain access to higher-level options, and adjust your tactics to the threats you face at each table.
For DMs, reward smart use of reactions and concentration with tactical advantages. Encourage creative combinations while maintaining challenge, and provide opportunities for counterplay so encounters remain engaging for the whole group.
Tags: dnd 5e, war magic, wizard subclass