Optimal Sheet table
I am making a TTRPG character creator, think Roll20 or D&DBeyond. However, there are a wholly variable amount of skills and what their names are. I want to know what the optimal way to store that information in a database is. I know for a fact that there will be a minimum of 20 values that pertain directly to the character sheet. These are Name, Description, Photo, Refresh, Aspects[1-5], Extras, Stunts, Physical stress, Mental stress, Mild consequence, Moderate Consequence, Severe Consequence, 2nd Mild Consequence, notes, creator id, and GM id. There are, from my experience, about 10 skills in total, but it can be more, and I don't know much about their values. Again, I won't be able to know the name, or value, but it seems wasteful to make 30+ columns just a third of them to be null.
TL;DR: Making a character creator, but there's too many variables for an obvious way to properly store it.