War Caster in BG3: Everything You Need to Know

If you’re diving into Baldur’s Gate 3 (BG3) and looking for a way to optimize your spellcasting while still being able to hold your ground in combat, the War Caster feat is something you’ll want to pay attention to. This small but mighty feature can make a big difference in your gameplay, and we’re here to break down exactly how to use it to your advantage.

In this post, we’ll explore what War Caster does in BG3, why it’s so powerful, and how you can build your character to make the most out of it.


Table of Contents

  1. What is War Caster in BG3?
  2. Why Choose War Caster in BG3?
  3. How Does War Caster Work?
  4. Best Classes to Use War Caster
  5. War Caster vs Other Feats: What’s the Best Option?
  6. Conclusion & FAQs

What is War Caster in BG3?

In Baldur’s Gate 3, the War Caster feat is a special ability that grants spellcasters an edge in combat. It provides three main benefits that help you cast spells effectively while staying in the thick of the action. Here’s a quick rundown of what the War Caster feat gives you:

  • Advantage on Concentration Checks: If you’re concentrating on a spell and take damage, you’ll have an easier time maintaining concentration, thanks to the advantage granted by War Caster.
  • Casting Spells as Opportunity Attacks: Normally, opportunity attacks are physical attacks, but with War Caster, you can cast a spell when an enemy tries to leave your range, potentially catching them off guard.
  • Verbal Components: You can cast spells even when you have a weapon or shield in your hand without worrying about needing free hands to speak the spell’s verbal components.

Why Choose War Caster in BG3?

Choosing the War Caster feat in BG3 is a game-changer for spellcasters who want to be more versatile and effective in combat. It’s especially helpful in situations where you might otherwise be stuck casting from the backline or worrying about taking damage while maintaining concentration on a crucial spell. Here’s why War Caster is a top pick for many:

  • Better Survival in Close Combat: When you’re facing off in the front lines, you’re often at risk of being interrupted by enemy attacks. War Caster reduces the chance of losing concentration, making it a must-have if you rely on keeping spells like Shield of Faith or Bless active.
  • Dealing Damage with Spells as Opportunity Attacks: Casting a spell as an opportunity attack can often deal more damage than a basic melee hit, especially with spells that have higher damage or utility effects. It’s like getting a free shot at an enemy when they make the wrong move.
  • No Need for Free Hands: Spellcasters typically have to choose between wielding a weapon or casting a spell. With War Caster, you can maintain your weapon or shield and still perform spellcasting, saving your action for other attacks or defensive maneuvers.

How Does War Caster Work?

The mechanics of War Caster are relatively straightforward but can drastically change the flow of a fight. Here’s how it works in practice:

  1. Advantage on Concentration Checks: If you’re concentrating on a spell and take damage from an enemy, you’ll roll twice and take the better result to see if you keep your concentration. This can be the difference between keeping a spell like Hold Person active or losing it to an unlucky hit.
  2. Opportunity Spells: Normally, if an enemy walks out of your reach, you get to make a melee attack as a reaction. With War Caster, you can replace that melee attack with a spell that has a range of 5 feet or longer. This is a fantastic way to punish enemies who try to escape your grasp.
  3. Verbal Components with Weapons or Shields: Normally, casting a spell with a verbal component requires you to have a free hand. War Caster lets you cast spells even if you’re holding a weapon or shield, making it perfect for hybrid warriors who want to fight and cast at the same time.

Best Classes to Use War Caster

While War Caster can benefit any spellcaster, certain classes get more mileage out of this feat. Here are the best classes to take War Caster:

1. Paladin

Paladins are a hybrid class that excels in both melee combat and spellcasting. With War Caster, they can dish out powerful spells like Divine Smite while maintaining their concentration and staying engaged in the fight.

2. Sorcerer

Sorcerers are often close to enemies and can benefit greatly from War Caster’s ability to cast spells as opportunity attacks. Plus, with their high Charisma, keeping concentration on spells like Shield or Haste is essential for maintaining effectiveness in battle.

3. Cleric

Clerics are versatile support casters who are often on the front lines. War Caster helps them maintain concentration on life-saving spells while also being able to act quickly with spellcasting when enemies attempt to flee.

4. Wizard

Wizards are fragile spellcasters, but War Caster helps them stay alive longer by ensuring they can concentrate on essential spells like Mage Armor or Mirror Image. They can also deal damage more effectively in close-quarters combat.


War Caster vs Other Feats: What’s the Best Option?

So, how does War Caster stack up against other feats? It depends on your playstyle and what you want to achieve with your character. Here’s a quick comparison:

  • Tough: If you’re more interested in survivability and want more health, Tough might be a better option, but War Caster offers better versatility in combat situations.
  • Elemental Adept: This feat is great for spellcasters who focus on specific elemental damage, but if you’re looking to be more versatile, War Caster is more effective in various combat scenarios.
  • Polearm Master: For melee-focused characters who also want to use their spells strategically, War Caster’s ability to cast spells as opportunity attacks may be the more beneficial choice.

Conclusion & FAQs

In summary, War Caster is an incredibly useful feat for spellcasters who want to be more versatile and effective in combat. Whether you’re a Paladin, Sorcerer, Cleric, or Wizard, this feat offers multiple advantages that can make all the difference in tight battles. It ensures you can maintain concentration, cast spells while wielding weapons, and take advantage of opportunity attacks with magic.


You May Wonder

1. Is War Caster only good for melee characters? No, War Caster is useful for any spellcaster who is likely to be in close combat or needs to maintain concentration on spells. It’s especially beneficial for hybrids like Paladins or Clerics.

2. Can I cast any spell with War Caster as an opportunity attack? You can cast any spell with a range of 5 feet or more when you trigger an opportunity attack, so spells like Shocking Grasp or Burning Hands are ideal.

3. Do I need a free hand to cast spells with War Caster? No, War Caster allows you to cast spells that have verbal components without needing to free up a hand, making it ideal for characters who want to wield a weapon and cast simultaneously.

4. Is War Caster better than other feats for spellcasters? It depends on your playstyle, but for versatility and survivability, War Caster is often the go-to feat for most spellcasters.


With War Caster, you’ll become a more formidable force in BG3. Whether you’re laying down devastating spells in the middle of a fight or simply keeping your buffs active, this feat gives you the power to dominate both spellcasting and combat.

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