What are the ramifications of expanded prodiciencies?

[Ravingdork]

If I were to house rule that...
...rogues get scaling proficiency with martial weapons,
...wizards and witches get scaling proficiency with all simple weapons

What are the unintended/unexpected consequences of such a house rule likely to be?

[HumbleGamer]

I see no issue with wizards ( I think nobody will ever use weapons, except maybe a short/longbow you can alternate with electric arc or any other 2 action spell ).

As for rogues, I think I'd do something similar:

- Thief = no changes ( their limit will always be the "finesse weapon" )

- Eldritch trickster/Scoundrel/mastermind = sneak attack with any simple weapon ( generalists - INT/WIS/CHAR - they can sneak attack using STR or DEX. their choice. Simple weapon proficiency with sneak attack )

- Ruffian = sneak attack with any martial and simple weapon ( the only STR users among thieves. Being combatants, they'll be able to use sneak attack even while using martial weapons )

Anyway, regardless the modifies, you should add a note for Ruffians, at least.

[AceofMoxen]

I also thought rogues deserved more weapon choices, but I don't want them competing with the front-liners for each new item.

I went with this list: 1st level rogue is also proficient with Bladed gauntlets, fighting fans, Probing Canes, Rapier pistols, Sai, saps, Star knifes, Sword canes, tonfa, Umbrella injector, Wakizashi, war razor, and wrist launcher. This proficiency advances to expert at 5th, and at 13th level it increases to master.

If you wanted to simplify the list, you could just say any martial weapon with agile or finesse.

[Unicore]

On a small scale, at your table level? It is very unlikely to be a problem if your players all want these class based changes. It could become a problem if it is a mid game change that seems to give out goodies to X classes but not others.

The bigger issues of “is this a change to give the class more power when it doesn’t really need it, or this isn’t the problem with the class” don’t really matter on a micro level.

[Squiggit]

There's basically no negative consequence in either case. Wizards don't really use weapons, and in both cases the classes already get scaling in functionally top level weapons, there's no power or balance concern here.

Worth noting though it's not wizards and witches, witches already have simple weapon proficiency. It'd just be wizards and rogues.