Hey everyone! I’m new to bonsai and recently tried out some air layering in my yard. My magnolia has this little sucker that looks like a mini magnolia already.
Mutations within a tree do happen and in some cases this does indeed give variation that's suitable for bonsai.
In this case however I do not see anything that can be used for bonsai.
Once I cut it from the parent plant, does it go in a regular pot or a shallow pot? Also, should I use regular potting soil or bonsai soil to start out with?
Nope. Bonsai are not created by putting young plants in small pots with bonsai soil. Start studying the basics.