How do spell levels work when Multiclassing?

According to the Multiclass Spellcaster: Spell Slots per Spell Level table on page 165 of the Player’s Handbook, you have access to 3rd-level spell slots. Once they have prepared their spells, they can cast a prepared spell at a higher level following all the normal rules found on page 201 of the Player’s Handbook.

Can a cleric multiclass prepare higher level spells?

Yes to all. The spells slots you have available to use are those on the Multiclass Caster table, and you can use them for any known and prepared spells of appropriate level. Cleric spells must be prepared each day and can only be prepared according to your Cleric level.

How do multi class spell slots work?

A 5th level wizard is a 5th level spell caster and can choose spells from the wizard list up to level 3 spells. A level 6 artificer/5 wizard is a 3+5 = 8th level spell caster with 2 x 4th level spell slots but they don’t know any 4th level spells.

Does Multiclassing give you more spell slots?

That is correct. The multi-classing rules state that you select the spells known or prepared based on your levels in the specific classes but you receive spell slots based on the combination of classes.

Can you multiclass different subclasses?

There is no way to multiclass into a subclass of the same class, the PHB does a good job at supporting this view. Like Sagatympana said, if you want to homebrew this, you can always have the option to have a “talent tree” or “choose your feature” option.

Do spell slots from different classes stack?

Your warlock spell slots and your wizard spell slots both stack, and you can use one classes spell slots to cast the other classes spells and vice versa. However warlock is the only class that does this.

Can you use spell slots for cantrips?

Cantrips cannot use spell slots A cantrip is a spell that can be cast at will, without using a spell slot and without being prepared in advance.