D&D 5E How many spell slots ... (multiclass & Arcane Trickster)

[SatanasOz]

Ok, here is my question:

Does Figher 1 / Rogue 4 who has chosen the Arcane Trickster Roguish Archetype have 2 or 3 1st level spell slots? Either answer, please elaborate

Should it matter, the char statered as a Fighter and mc'ed into Rogue.

My reasoning so far:

Spoiler

Under the multiclassing rules, Fighter or Rogue levels count as 1/3 rounded down levels on the mc-spell slot progression table. It is not 100% clear if only the levels in a class for which you have chosen the magic archetype count towards that of if both count once you have one of these. For the initial question, this is irrelevant at lv. 5 (i.e. in this calse: is it 4/3 = 1 or 5/1 = 1).

That would lead to the weird situation though that a mc FTR1/ROG4 would get only 2 1st level slots (as per 1st on the mc spell level table), whereas a straight up ROG4 would get 3 (as per the Arcane Trickster table).

So, do you think it is intended that a 5th level mc char gets less than a 4th level straight up FTR / ROG or is it an oversight?

I personally expect that the mc table is more intended for full caster mixed with non or partial caster classes and falls over for the Fighter & Rogue. As I am the GM in this game, I think I will rule the following:
As long as you have the arcane archetype in only 1 class, you have that progression and only for class levels in that class. If a char has both the eldrich knight and the arcane trickster archetype, they will progress as a straight FTR or ROG on the archetype tables (which have the same progression).

 

[77IM]

I think you only use the MC spell table if you have two spellcasting classes. Otherwise, just use your class's regular table. Fighter is not a spellcasting class until you take eldritch knight.

 

[Mouseferatu]

I think you only use the MC spell table if you have two spellcasting classes. Otherwise, just use your class's regular table. Fighter is not a spellcasting class until you take eldritch knight.

Yep. This.

 

[SatanasOz]

Thanks - always nice to hear when ones ruling is not completely off

 

[Plaguescarred]

It is not 100% clear if only the levels in a class for which you have chosen the magic archetype count towards that of if both count once you have one of these.

If you don't have the Spellcasting feature from more than one class, you don't follow MC rules for Spell Slots determination;

PHB164 Spellcasting: Your capacity for spellcasting depends partly on your combined levels in all your spellcasting classes and partly on your individual levels in those classes. Once you have the Spellcasting feature from more than one class, use the rules below.

 

[SatanasOz]

Should have said "it's not 100% clear to me" -

Thanks for the clarification, that is as unabigious as it gets. I must admit, I have not read the spellcasting section in full, yet!