Last year, when SW GF1 came out, people immediately reported about the 3 variants on the common cards, and these seemed to be relatively easy to pick up, if you resorted to ebay. A dealer told me that on average he picked up all 3 in a case

I didn't know that there were also 3 variants on Galactic Files 2, back in August ! Are these hard to find ?

I believe two to three variant cards were in each case.

I opened 2 boxes of series 2, and I pulled a variant card out of each box.

I opened 5-6 boxes of series 2 and found none. It's pretty likely that they're one set of 3 per 12 box case which is pretty much what they were in Series 1.
I opened two cases of Series 1 and found a set of three in each case.

I opened 4 boxes and 2 had variants. Luck of the draw I guess