I can't make it work!
Hi Krust!
First of all I will start out with a correction

You rate the Giant type as +0.2 CR because of Darkvision. Only thing is, that was in 3.0. In the MM 3.5 giant type creatures have low light vision and therefore only +0.1 CR
Hope I haven't destroyed your day.
And now please help! Anyone! I have tried to calculate the CR of some creatures and no matter how I try I can't get the numbers UK get. So I must be doing something wrong, wrong, wrong and I don't know what it is....
So if someone would please give me a hand here. Let's start with the Ogre, an old favorite of mine. Krust rate it at 5.225 CR. Here's what I get:
4 giant HD (0.55*4) = 2.2
Large size = 1.2
+5 natural armor = 0.5
Darkvision 0.2
Lowlight vision 0.1
Full Attack (2d8) = 0.9
This totals 5.1 CR. Where does the rest come from? What am I forgetting? And it gets worse when you take into consideration that the Ogre should have a -0.6 CR adjustment for its crappy ability scores, which ends up making the Ogre CR 4.5!
Help!
Next the Doppelganger. Krust rate it at 4.43.
4 monstrous humanoid HD (0.6*4) = 2.4
+4 natural armor = 0.4
Darkvision = 0.2
Change Shape = 0.5
Detect Thoughts (18*2*0.005) = 0.18
Immune to sleep & charm = 0.2
Skill bonuses (+8) = 0.16
This gives 4.04 CR. Now add +1.4 CR for ability scores and you got a full CR more than Krusty's rating.
Help!
Last one, the elf warrior. UK got it at 1.285.
Elf traits = 0.36
Warrior lvl = 0.7
lvl of npc equipment = 0.125
Total = 1.185. Where does the last 0.1 come from?
So I'm confused and admitting it.
Anyone?