Multiclassing means taking a level in a different class instead of your current one. A fighter can become a fighter 5 / wizard 1. It’s optional — ask your DM — and it trades power at higher levels for flexibility now.
The requirement
You need a score of at least 13 in the primary ability of both your current class and the new one. A barbarian moving into druid needs Strength and Wisdom of 13 or higher.
What you get
- Hit points by the new class’s Hit Point Die each level, but never the level 1 maximum again.
- Only some proficiencies — each class lists what a multiclass character gains.
- Your proficiency bonus is based on your total character level, not each class.
- Spell slots combine using a multiclass table if you have levels in more than one spellcasting class.
- Extra Attack from two classes doesn’t stack.
Good, simple combinations
- Fighter 1–2 + any class: armor, Second Wind and Action Surge.
- Cleric 1 + wizard: armor, healing and a few domain spells.
- Paladin + warlock or sorcerer: both use Charisma, so one ability powers everything.
- Wait until at least level 5 in your main class so you get its big level 5 upgrade first.
Read the rules
The full multiclassing rules are in our compendium. Not sure which class to start with? See which class should I play.