How do I get Base flags in ORAS?

So I want to get Garchompite for my Garchomp but I need base flags for that and i don’t know how I’ll get them on Citra. Can someone direct me on what to do?

In order for us to provide better support, we need to see the log generated by Citra. This guide will walk you through how you can obtain the log file: How to Upload the Log File.