Mortis
First Post
Keep it simple, reduce the natural armor bonus by 4.Shade said:CR 21 sounds good.
AC 42 is spot-on for that CR, but we'll need to lower some of the bonuses to account for the +4 deflection bonus from his cloak.

So...
Armor Class: 42 (+10 Dex, +11 natural, +7 insight, +4 deflection), touch 31, flat-footed 39
How about organization? Same as Amduscias?
Of my suggests, I favour 2d6 abishai of assorted colours
Regards
Mortis