@Eirene, right, I agree. I was trying to explain that just because it's old doesn't mean it's more powerful because the poster said, he implied that he is older as if that mattered.
ANYWAYS. My class is getting boring so I figured i'd elaborate a few things.
I don't think we should take what a specific Codex says when there are feats that contradict that. I also believe that feats are more appropriate, suitable, and exceed what is implied. So for example, if High Dragon Codex says they are the strongest creatures but then we see them lose to a Giant, clearly, the feat is more appropriate than the codex. The reason why I'm saying this is because some people look at the Codex
http://dragonage.wik...dex_entry:_FearIt and I will quote a specific part
Keep in mind, there is also a Codex about the Archdemon that says http://dragonage.wik...ry:_The_Old_God
There is also a codex about the Pride demon saying it's the most powerful this is found in the same game. http://dragonage.wik...n_(Inquisition)
So while the Codex are a good source of facts and information, we shouldn't take what is implies as a fact especially when it comes to relative strength. I think the idea of the Codex is that they are written from a Character in the game, in this case a Templar or Mage.
One last thing, the 2 codex about the fear Demon,
http://dragonage.wik...e_(Inquisition)
http://dragonage.wik...dex_entry:_Fear
Remember the Fear codex (2nd one) is only implying that the Fear demon that feeds on the fear(S) (plural) of a nation can become strong enough to dominate the fade. It's pretty obvious that it does not specific the actual conditions because it's implied. This character wouldn't know because he can't live long enough. He even says himself, he hasn't found this type of creature (1st codex)
So my point being is, don't take what this codex says as 100% fact. Sometimes it's just implied just like how for the Pride Demon, it's implied that in their general power, they are the strongest. It doesn't have to tell you that specifically but it's implied because we know there are stronger demons like the one we encountered this game. Even with the Old Gods Codex, they rule over, it doesn't mean that exactly; It's figurative
If you are going to have a Archdemon vs Fear Demon found in Inquisition, I think it's fair to say, the Archdemon has just as much implied power as the fear demon with the addition of a lot of feats. For one it is immortal, has dragon properties, and it also has attacks that reach the fade (correct if plz, it said so in book). Well that's my interpretation of this anyways. I'm sure we will see this Fear demon in the future where we will have to fight it, but I can not see it ever being the Main Villain, hence i doubt it will be portrayed as the strongest.