Rinaldo has returned for FIFA 19 with a new tool called Revolution DataBase Master 19 in collaboration with Fidel aka Doctor+ Productions.
This tool is very similar in functions with the old Internal Master and allows you do edit the database tables present in the FIFA 19 career and tournament files.
A tutorial on how to use with this tool will be added shortly to this post.
Remember that this is a Beta version and some functions may have issues!
Please note that in the templates folder of the program you can find a FIFA.xml file containing some db values and their functions but it’s not complete. You can contribute by sharing other unknown values and functions in the comments.