What if you make bonuses from adamantine and magic stack?

[candidus_cogitens]

What effects would this have on the system?

Certainly, it would protract combat encounters. Would it do so too much? Would it make armor more significant and interesting? Would it add "flavor"?

(The idea came to me because I don't like the feel of combat where there are too many hits. I like hits to be fewer and more deadly. Also, I kinda like the idea of not having to rely to heavily upon powerful magic to have a good AC).

 

[CRGreathouse]

If you did, I would suggest a cost multiplier for enchanting the armor.

 

[candidus_cogitens]

If you did, I would suggest a cost multiplier for enchanting the armor.

When you say "cost multiplier", what do you mean exactly?
Part of the basic idea was to make it cheaper to get a high AC.

 

[Angcuru]

I already rule that enchantments stack with any pre-existing bonuses from special materials. Works fine for me.

 

[candidus_cogitens]

I already rule that enchantments stack with any pre-existing bonuses from special materials. Works fine for me.

Glad to hear that it works fine. But what I really want to know is how did it change the feel of the game?