How to simplify character sheets for challenges

So you have a character. But you don’t have a character sheet.

What do you do?

  1. What challenges can the character represent for the players?
  2. Identify the character’s strengths and weaknesses in the challenge.
  3. Increase or decrease the difficulty based on your guesses.

In general, I think in terms of raw bonus for it and just guesstimate the number based on how much more difficult i want the challenge to feel. I make up the reasons for it after the roll sometimes