Adding Equipment

[jeffhartsell]

For example, an ogre savage normally has an Armor Class of 19 (it’s assumed to be wearing crude hide armor). Its effective armor bonus is +5 (19 – 10 – 4 [Dex]). Giving the ogre chainmail instead would improve its AC by 1 to 20, since the armor’s +6 bonus is 1 higher than this number.

This does not seem accurate.... adding chainmail means the ogre no longer can use its Dex bonus to AC (unless chainmail is actually light armor).

 

[UngeheuerLich]

it has dex 10 or 11 and a +4 bonus from level...

they have worded it badly IMHO, but after thinking it over several times, it seems correct

 

[jeffhartsell]

it has dex 10 or 11 and a +4 bonus from level...

they have worded it badly IMHO, but after thinking it over several times, it seems correct

Ah yes. That makes more sense. I forgot about the level adjustment. Indeed, that was not worded very well. The -4 was not really taken from Dex, but for the ogre's level.

That is the tricky part of having monsters not follow PC rules; we have to back into the AC bonus of the armor since it is not a line-item in the stat block.