I have the max of 2000 points, and I have the carrion jadinko attrached, but I also think there is a potion I am supposed to add or something else like warding off commons as well.  Is there a potion I am missing or just now ward off the commons and go collect?

If your aim is to get vine herb seeds from the offering stone then yes you need to give Papa Mambo a striped vine (camo jads) to ward off the common jadinkos before you claim, otherwise the drop table of seeds will contain more than just vine herb seeds.