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

Multiclassing a Warlock in Baldur's Gate 3 can create a highly versatile and powerful character, but it requires careful planning to maximize effectiveness. One of the best multiclass combinations for a Warlock is pairing it with a Sorcerer, creating what is commonly known as a "Sorlock." This build leverages the strengths of both classes, combining the Warlock's consistent damage output with the Sorcerer's flexibility and spellcasting prowess.

The mechanics of this multiclass revolve around the synergy between the Warlock's Eldritch Blast and the Sorcerer's Metamagic abilities. Eldritch Blast is a cantrip that scales with character level, not class level, making it a reliable source of damage throughout the game. When combined with the Sorcerer's Quickened Spell Metamagic, you can cast Eldritch Blast twice in a single turn, significantly increasing your damage output. Additionally, the Warlock's Pact Magic slots recharge on a short rest, which can be converted into Sorcery Points for more Metamagic options.

To build a Sorlock, start by taking your first level in Warlock. This gives you access to Eldritch Blast and the Hex spell, which adds extra damage to your attacks. At level 2, take another level in Warlock to gain access to Invocations, such as Agonizing Blast, which adds your Charisma modifier to Eldritch Blast damage. This is crucial for maximizing your damage output early on.

After reaching level 2 in Warlock, switch to Sorcerer for the next few levels. The Sorcerer class provides a larger pool of spell slots and access to Metamagic at level 3. Choose the Draconic Bloodline or Wild Magic origin based on your preference. Draconic Bloodline offers extra hit points and a damage boost to spells of your chosen element, while Wild Magic provides unpredictable but potentially powerful effects.

At Sorcerer level 3, you gain access to Metamagic. Quickened Spell is essential for this build, allowing you to cast Eldritch Blast as a bonus action. This means you can cast Eldritch Blast twice in one turn, dealing significant damage. Twin Spell is another useful option, allowing you to target two creatures with a single-target spell, though it doesn't work with Eldritch Blast.

As you progress, continue leveling Sorcerer to gain more spell slots and higher-level spells. However, consider taking a third level in Warlock at some point to gain access to Pact Boons. The Pact of the Tome is a strong choice, providing additional cantrips and ritual spells, while the Pact of the Chain offers a powerful familiar for utility and combat support.

One important tip is to manage your resources effectively. Warlock spell slots recharge on a short rest, so use them strategically. Convert unused Warlock slots into Sorcery Points to fuel your Metamagic abilities. This ensures you always have options available in combat.

A common mistake is neglecting your Charisma score. Both Warlock and Sorcerer rely heavily on Charisma for their spellcasting and abilities, so prioritize increasing this stat. Use Ability Score Improvements (ASIs) to boost Charisma, and consider taking the War Caster feat to maintain concentration on spells and cast spells as opportunity attacks.

Advanced techniques include using the Hex spell in combination with Eldritch Blast for consistent damage over time. Additionally, consider taking the Repelling Blast invocation to push enemies away, creating space and controlling the battlefield. This can be particularly useful in combination with area-of-effect spells from your Sorcerer levels.

In terms of D&D rules, multiclassing follows the standard 5th Edition rules. You must meet the ability score prerequisites for both classes (Charisma 13 for Warlock and Sorcerer). Spellcasting multiclassing rules apply, meaning you can use Warlock spell slots to cast Sorcerer spells and vice versa, but you prepare and know spells separately for each class.

Specific examples of this build in action include using Quickened Spell to cast Eldritch Blast twice in a turn, dealing massive damage to a single target or spreading it across multiple enemies. In a scenario where you face a tough boss, you can Hex the target and then unleash multiple Eldritch Blasts, quickly whittling down their health. Against groups of weaker enemies, you can use area spells like Fireball from your Sorcerer levels to clear them out efficiently.

In conclusion, the Warlock-Sorcerer multiclass is a powerful and versatile build that excels in both single-target and area damage. By carefully managing your resources and leveraging the strengths of both classes, you can create a character capable of handling any challenge Baldur's Gate 3 throws at you.