Voadam said:
Plenty of asymetries in the game.
fiends and celestials have DR based on good evil, not law chaos.
Tons of fiends defined by their evil, fewer but still bunches of celestial types defined by their good. Very few defined primarily by their Lawful or Chaotic nature.
Paladin is a core class, blackguard is a prc.
Monks and paladins don't seem a true symmetry to bards and barbarians.
Compare protection from evil from protection from any other alignment for just what they keep out.
Detect evil picks up undead as well.
Aust Diamondew said:
Black gaurd versus Paladin- Not very symetric (PRC vs Core class)
Demons and Devils versus Angels and Archons- Not symetric...at all.
Good Domain versus Evil Domain- Not quite symetric.
Turn Undead versus Rebuke Undead- Very Symetric
The list goes on and on in D&D. The fact is some things are very symetric and some aren't at all. It's not as if everything is in D&D. In fact I'd say most things aren't.
They don't have to be perfectly mirrored to be symmetric. It's not that because a difference in DR, or because PfE also help against neutrals, then you can say that the symmetry isn't there.
There is also a sort of process of multiplying symmetries like this:
1) start with celestials and fiends; there's already a symmetry but so far it's very good, at least the concept is very strong, and comes from RL legends and beliefs
2) notice you have lawful and chaotic stuff in OD&D, split fiends in two
3) oh my god there's a hole in the middle! Mr.Monk comes in and writes Yugoloths in the NE slot
4) if fiends are split, then the same must be done with celestials
5) notice there can actually be 9 combinations, fill the remaining slot
Spells and abilities that address alignment are very simmetric just because there always exist a similar (albeit not necessarily perfectly identical) counterpart.
With the elements the original sin is that of energy associations. They want elements to be equally powerful (fine), but then why is it so necessary to grant every element the same effectiveness with regards to damage? I prefer the idea of certain settings where fire detroys, water heals, air moves, and earth grows vegetation, and energies are left out of the subject (except fire of course).
BTW, about classes I was never thinking that the 11 PHB classes are symmetrical (that doesn't even make sense to me).