oreofox
Explorer
Interesting question. I feel like a lot of the ideas for improving D&D that float around here are more along the lines of heavy overhauls, so restricting our consideration to a humbler "5.25" may actually bring us to some unexplored territory.
Here are a few of my thoughts:
- Move the subclass choice down to level 1 for most if not all of the classes. The devs made a deliberate design choice in 5E to avoid that where possible, but looking back with a few years' experience of the game I think it was the wrong one.
- Spread out saving throw effects more between all six of the ability scores, and provide a stronger thematic definition of what each saving throw is for. Making concentration an Int save instead of Con would do a lot all on its own. Get rid of the idea of "strong" and "weak" saving throws; let the ranger be Dex/Con and the monk be Dex/Wis like we all know they ought to be.
- A lot of people are going to say the opposite, but I say lean into Expertise a little more: give most if not all classes expertise in one thematically appropriate skill (e.g. Arcana for wizards) and let the rogue/bard's niche be more versatility than raw numerical superiority.
- Stacking advantage and disadvantage, within reason. Obviously I see the virtue in simplicity of not letting them stack. But I also repeatedly see my party's barbarian Reckless Attack while blinded to completely cancel out the disadvantage to attacks while providing no additional advantage to enemy attackers.
I haven't read all the replies, but your's stuck out to me. Especially your first point. While I don't know about all at level 1 (I would say level 2 for all except cleric and sorcerer, or maybe just sorcerer would stay level 1), I'd have them all get their subclass abilities at the same levels (such as all at 2nd, 5th, 8th, 15th, instead of what we have now. Sorcerer would get their 2nd level ability at 1st).
Your other points, I agree with.