6 months of playing. I walked a dratini 135 candy during the double candy event.
SW/DC
and the other is SW/HB
I gave up. In the last 6 weeks I've seen and caught exactly zero drating (but 5 Snrolax). Which is okay. IMO Snorlax is better save for a lower overall CP.
I wouldn't power up yours with that moveset. Especially with candy so rare.
FWIW I've hatched 1002 eggs as of this date. only 3 were dratini. My very first 10k was a dratini. Didn;t realize what I had there. The last two came within the last month. So I probably hatched about 950 eggs in a row without a dratini.
For me, one of the rarest mons out there. I have 11 Snorlax and missed a few. Two good Muks, 3 Hotmomlees, 6 Hitmonchans, ...just a lot of eveything else. But only 2 Dragonites and I got them the hard way. Just like you.