Lago PARANOIA wrote:
THAC0 was the sacred cow of pre-3rd edition D&D. It's the mechanic which gave D&D its reputation as a convoluted an math-heavy game even in far-detached sources like the Straight Dope. It was not a 2E-only invention, either.
THAC0 was an invention of 2nd edition, to change 1st editions table lookup system.
So we have
1st edition: Table
2nd edition: THAC0
3rd edition: BAB
4th edition: Ability score + level bonus.
Given it was different in every edition, it's certainly not a sacred cow.
All of those things you talk about underwent major changes from 2E to 3E. If you don't know about 2nd Edition please don't talk about it.
The concepts remained the same.
Hit by a death spell? Roll a save or die.
Spring a trap? Roll a save or get hit by it.
Yes, 3E refined the save categories into something that wasn't totally insane, but the concept of the saving throw remained, it was just refined.
The main sacred cows of D&D are:
[*] Hit Points
[*] 6 ability scores ranging 3-18
[*] Classes
[*] Vancian casting
[*] Magic items defined by bonuses (+3 swords)
And as far as treading on sacred cows, 3E took very few chances. Note what happened in 4E when they didn't include the druid or the bard in the core book. Seriously, people tend to hate bards, but some of them started flipping tables because it wasn't in the core book. A lot of players simply wanted it there just so they could constantly skip over it and never play one. But having that bard they never play made it feel more like D&D.
You could literally bring a bard and druid in there that totally sucked and was unplayable garbage (god knows, the 2E druid was), and people would be fine. People don't make a big deal of something if it's included and sucks ass. Take away that sacred cow though, and you can expect tables will be flipped.
If anything was proven, it's that D&D players are VERY attached to their sacred cows. You can change the mechanics some, but you better damn well have that class named "Druid" and "Bard". You better damn well have hit points. And you better have those vancian spell levels. Otherwise, it just won't feel like D&D to some people.