Okay, I've got a hunch that this is Schuyler's staff dog and if not then I have some other guesses up my sleeve. Thankfully the hints were all listed so lets get this on a roll.
Getting the easy stuff out of the way, the eyes are not a primary color and the pup ended up gaining a dagger as it got older. I'm going to assume that the hint about gaining something when it grows was referring to the pup actually aging into an adult; which is when the pup got the dagger.
Now, I thought a lot about the solid areas of color and, I'm quite literally grabbing at straws here, but I'm going to assume that the nose counts for that? And the other ear, perhaps? It doesn't seem to line up with this outcome, but this outcome has surely been nagging me at the back of my mind.
Now, what is really making me have the suspicion of this being your pup is the fact that you mentioned that they would be a bold fighter; this outcome does have a dagger with it. I feel like a lot of people could tie in sharp items with someone being a fighter of some sort.
This is brief, but I tried to keep everything straight to the point! Of course, if this outcome is denied I'll definitely try to look more closely into the litter and figure this out; at least I'll have one outcome crossed off of the list for sure at least.
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