Still, I'd like to know your opinion on the following options:
1) Mind control immunity, medium armor + shields training and no +1 whatsoever;
2) Only resistance/advantage to mind control and +1WIS or +1STR;
2a) with medium armor and shields;
2b) without medium armor and shields;
3) Still, if anyone thinks they deserve a +1DEX and has a good argument, let me know.
Thanks for your opinion in advance!
Well, I don't have the DMG so I don't know about the guidelines therein, but from the structure of other PC races, I would still break up the Enlarge and Invisibility to 1 of them at 3rd level and 1 of them at 5th. But that's me.
As for "immunity" I don't believe any other PC race has immunity to a whole range of effects. So that's big no from me on that. Advantage on enchantment magic and mind-effecting illusions (e.g. phantasmal force, phantasmal killer, etc...) and psychic damage resistance seems more than adequate.
And advantage against and resistance to poison, as per the MM & covered by Dwarven Resilience in the PHB as part of the base Dwarf package.
As for the +1, the other dwarf subraces have +1 to something...in fact I think all sub-races have an additional +1 to go with their initial +2, don't they? So I would do the dwarf standard +2 Con. and +1 on the Int., since it is their casting ability (which I agree with)...and lends to the "incredible mental fortitude" fluff.
As for armor/shield prof...Why? They have their weapon profs like other dwarves. Mountain dwarves have heavy armor prof. It's, like, their shtick as the die-hard warrior guys, I guess (completely arbitrary and unnecessary thing to distinguish them from hill dwarves, and OP, if you ask me). It fits their fluff, I guess I'm saying.
So that's another no, on the armor/shield prof, for PCs for me.
Duegar's fluff is psionic underdark slavers...or in 5e, it seems "psychically resilient from their former role as mind-flayer slaves-turned-underdark slavers." They use armor and weapons, sure. But I don't really see it so crucial to their society/being that it warrants a PC trait.
And with their innate magic and psychic/charm resistance I think they are up to speed (or even a bit ahead) of their dwarf (and other PC race). brothers & sisters.