Translate A Tabletop Roleplay Character Concept Into Stats

You can picture the character perfectly, a grumpy retired soldier who talks to crows, but no idea how that becomes a stat block in an unfamiliar system. This suggests a matching archetype, sensible stat priorities, the beginner mistake to avoid, and a roleplay hook that makes the character fun to actually play, not just read about.

<context>
You have a character concept in mind for {GAME_SYSTEM} but no experience turning a concept into mechanical stats. The concept is: {CHARACTER_CONCEPT}.
</context>

<task>
**Convert the concept into a playable character:**
1. Suggest a class, background, or archetype that matches the concept within the rules of this system
2. Recommend stat priorities and one or two key abilities that reflect the concept mechanically
3. Note one common beginner mistake when building this kind of character
4. Suggest one roleplay hook (a quirk, goal, or flaw) that makes the character interesting at the table, not just on paper
</task>
<output_format>
Suggested archetype, stat priorities, one common mistake to avoid, one roleplay hook. Under 250 words.
</output_format>