Who's gonna switch to 5.5, and why?

[Ignimortis]

The KISS solution is to do away with resistance to nonmagical attacks entirely, except when it is highly thematic. For example, werewolves should be weak to silver, and horcruxes can have a small list of weaknesses.

But does every high CR monster need this? Does it add anything to the narrative? It could, with a proper DM and a game where these creatures are major threats, not encounter #2...but this rarely manifests ime. In practice, the DM has to halve a bunch of numbers for no good reason.

Then the already-present 5e issue with "a couple hundred mundane low-level archers can kill literally everything they can hit" gets even more noticeable. I am already very skeptical about 5e's implementation of resistance (honestly, resistance 5, 10 or 20 isn't hard and is about the same complexity as "divide by half", the only issue with it is that 5e doesn't scale damage on hit properly, so not having a magic weapon would shut some people down hard), and that would make things even worse, with HP being even more of a singular indicator of how hard a thing is to kill.

Rage use to be a 3.5 spell, please don't remind WotC.

3.5 also used to have a spell that let you get Fighter bonus feats for a while (something about heroism, IIRC), and Divine Power that got you full BAB, and other stuff. And Polymorph is pretty much beefed-up Wild Shape. Most things that existed in 3.5 had a spell that would let you borrow it, or at least an approximation of it.

And that's the issue with D&D magic - every spell is basically a class feature, some are just less subtle about it.