♤ The main foundations:

What can be done with magic?

What can’t your magic do.

Is there a price/cost of using said magic?

What does it feel like to use magic?

For conflict reasons: What can go wrong by using or having said magic?

♤ I also expanded these points to write down the following:

Who does magic affect?

What can/can’t magic affect?

Can everyone do magic?

Does magic have a feeling even when not being used?

Do people have to learn magic or is it intuitive?

Who teaches magic?

Is magic inherited by blood?

Does the magic tie in with the religion of my world and if so, how?

Do people need instruments through which to use magic? ie. a talisman or wand

Is magic a thing a person has or is it acquired? ie. do they just have magic they can access at any time or do they need to drink magic juice™️ for a quick burst of power?

How is magic used in daily life?

Can anything stop a person’s magic?

Can magic be found anywhere?

For an extra bit of pizzazz, I sometimes like to write down different scenarios using the answers to these questions, and that helps me decide on whether I like the way I’ve set up the magic system!

You can also look at the worldbuilding and characterization you’ve already down to see how your system would affect and be affected by said magic system.