Also some nations get extraneous benefit from Death scale. Specifically, those nations with a +/-3 temp preference.
In a recent game as Caelum, I was attacked by Abysia, who of course had 3H, and also 3D. In most of his provinces, I was getting <20 supplies, and as you know, Caelum hasn't got the easiest access to Nature.....
Needless to say, in short order my entire army was diseased, and then dead, and I had to retreat.
The paradox is, if you are using 3D to cripple or scare off attackers - you also need to aggressively expand, AND have powrful enough dominion to push it outwards over all of your territory, including that which you are currently conquering. At the same time, it will bleed over into your neighbors' lands, and really piss them off.
