What is the best multiclass combination for a Fighter in Baldur's Gate 3?

Multiclassing a Fighter in Baldur's Gate 3 can significantly enhance your character's versatility and effectiveness in combat. One of the best multiclass combinations for a Fighter is pairing it with the Barbarian class. This combination leverages the Fighter's combat prowess and the Barbarian's raw power and durability, creating a formidable melee combatant. Here's a detailed breakdown of how to achieve this build, including mechanics, strategies, and tips.

First, let's discuss the mechanics involved. Fighters are known for their high number of attacks, action surge, and access to heavy armor and weapons. Barbarians, on the other hand, excel in melee combat with their rage ability, which grants them resistance to physical damage and increased damage output. When you multiclass these two, you create a character that can deal massive damage while being incredibly tough to take down.

To start this build, you should begin as a Fighter. This gives you proficiency in heavy armor and all weapons, which is crucial for your survivability and damage output. At level 1, Fighters also get Second Wind, a self-healing ability that can keep you in the fight longer. At level 2, you gain Action Surge, allowing you to take an additional action on your turn, which is invaluable in combat.

At level 3, you can choose a Fighter subclass. The Champion is a solid choice for this multiclass build because it increases your critical hit range, synergizing well with the Barbarian's increased damage output. Alternatively, the Battle Master offers more tactical options with maneuvers, which can be useful in various combat scenarios.

After reaching Fighter level 5, which grants you Extra Attack, you should start taking levels in Barbarian. At Barbarian level 1, you gain Rage, which increases your damage and gives you resistance to physical damage. This is a game-changer for your survivability and damage output. At Barbarian level 2, you get Reckless Attack, allowing you to attack with advantage at the cost of giving enemies advantage against you. This is a powerful ability that synergizes well with the Fighter's multiple attacks.

At Barbarian level 3, you can choose a subclass. The Path of the Totem Warrior is an excellent choice, particularly the Bear totem at level 3, which grants you resistance to all damage except psychic while raging. This makes you incredibly durable. Alternatively, the Path of the Berserker offers Frenzy, allowing you to make an additional attack as a bonus action while raging, further increasing your damage output.

One important tip is to manage your ability scores carefully. Strength should be your primary stat, as it affects your attack rolls and damage. Constitution is also crucial for your hit points and durability. Dexterity is less important if you're wearing heavy armor, but having a decent score can help with initiative and saving throws. Wisdom is useful for perception and saving throws, while Intelligence and Charisma can be lower unless you have specific roleplay reasons to invest in them.

A common mistake to avoid is neglecting your Constitution. While the Barbarian's rage provides resistance, having a high Constitution ensures you have a large pool of hit points to absorb damage. Another mistake is not balancing your levels between Fighter and Barbarian. Typically, a good split is Fighter 5/Barbarian 3, allowing you to get Extra Attack and a Barbarian subclass feature. You can then continue leveling in Fighter for more attacks and feats or in Barbarian for more rage uses and subclass features.

Advanced techniques include using feats to further optimize your build. The Great Weapon Master feat is particularly effective, allowing you to take a -5 penalty to attack rolls for a +10 bonus to damage. Combined with Reckless Attack, this can lead to devastating damage output. The Sentinel feat is another strong choice, allowing you to make opportunity attacks more effectively and control the battlefield.

In terms of related D&D rules and mechanics, it's important to understand how multiclassing affects your character. When you multiclass, you gain the features of the new class but not necessarily all the proficiencies. For example, multiclassing into Barbarian does not grant you proficiency in heavy armor unless you started as a Barbarian. Additionally, your hit points are calculated based on your total level, but your class features are tied to your level in each specific class.

Specific examples and scenarios where this build shines include tough boss fights and large-scale battles. In a boss fight, your high damage output and durability allow you to stand toe-to-toe with powerful enemies. In large-scale battles, your ability to control the battlefield with Sentinel and deal massive damage with Great Weapon Master makes you a key player in turning the tide of combat.

In conclusion, multiclassing a Fighter with a Barbarian in Baldur's Gate 3 creates a powerful and durable melee combatant. By carefully managing your ability scores, balancing your levels, and choosing the right feats, you can optimize this build for maximum effectiveness. Avoiding common mistakes and understanding the underlying mechanics will ensure your character is well-prepared for the challenges ahead.