Let's suppose a Fighter 1/Cleric 6/Druid 10 makes a Wisdom saving throw against the Charm Person spell. First off all, what are the proficiency saving throws for this multiclass? Is it Strength, Intelligence, Wisdom, Consitition, Charisma? After all, Strength and Constituion is from the Fightere, Intelligence, Wisdom is from the Druid, and Wisdom, Charisma is from the Cleric. Now do we double the proficiency bonus because Wisdom appears twice? And how do we figure out the proficiency bonus to begin with? Do we take 16 as the level and use that? Or the 6 from the Cleric and the 10 from the Druid and combine both proficiency bonuses somehow?
1. You do not gain new saving throw proficiencies from multiclassing. You only have the proficiencies of your first class, and the specific armor/weapon/tool proficiencies of your second class as listed in the table on page 164 of the PHB.
2. You cannot gain proficiency in a skill, save, or anything else twice. Some abilities specifically allow you to add double the normal proficiency bonus to certain types of checks, but that is not the same as being double-proficient. For any given skill, armor, weapon, saving throw, or tool, you either are proficient, or you are not. You cannot be proficient twice.
3. Your proficiency bonus progresses by character level, not by class level, so multiclassing does not affect its rate of advancement.
Novacat wrote:
prestokeys wrote:
prestokeys wrote:
It's possible that prestokeys is referring to a D&D computer game that's based on 3E instead of 5E. D&D Online or Neverwinter Nights come to mind.
No no, he's writing a program of some sort for 5e. He mentioned it in a different thread like a week or so ago, I think. I'd link to it but these forums are so poorly designed I have no idea how to find it.
paulstrait wrote:
As I said, NPCs do not have classes. They have precisely the abilities, proficiencies, and bonuses they need to fulfill their role in the story. They are not built like player characters at all, so you don't need to know what their "first class" is, or even explicitly identify them as being a multiclass character.
prestokeys wrote:
If you want to be specific, Monsters have the "Monster Class" with a whole bunch of archetypes and subclasses. So sure, they can be built just like PCs if you view it that way 
Novacat wrote:
Saelorn wrote:
I think you misunderstand though. The monsters in the monster manual do not have classes. You can make your own monsters and give them classes (or have them multiclass), but they would then be different from the monster manual monsters.
Can anyone explain why you don't get proficiency with your new class' saving throws according to the rules? I've tried to scour my PH for an answer, but I haven't come up with anything definitive.
Jedric0202 wrote:
Saelorn wrote:
Jedric0202 wrote:
Got it. It would have been helpful for them to outrigh say, "You do not get saving throw proficiencies," but I see now what their thought process was. Thanks!