I believe the shillelagh should work on the greatclub, I just tried it and the greatclub has the same base damage as the staff (my character has 9 strength) I wanted to make a unique blitz type of tank who uses the greatclub with that cantrip (even though they have the same damage I just like the looks of a club over a staff and it says it works for clubs but the greatclub has club in the name XD)
This is just me and it could be modded in but I would love it if it was in the full game, the staff is versatile now and has the same damage as the greatclub for my character of 9 strength so I don’t see any way the greatclub would be overpowered with the shillelagh. I fell in love with the Druid class first time I played it tbh and I would really like to see the greatclub work for it
Also the berry spell is underpowered haha for one spell slot it’s basically one health potion which I don’t believe is a good trade for entanglement or fire rock etc I think just a little buff would be cool I like the idea tbh and I still use it but I heard about it from YouTube and tried it and it was like they said just not that good haha
Just my thoughts and experiences thank you for reading have a nice day