Got 9 Legendries (1 golden) from 128 packs (both bundles plus the three free ones). Not great but def not the worst I've had either. Bought another 53 packs with gold and only got two Legendries in those so that part was disappointing. Sucks to hear some of you guys have had such crappy luck with your pack openings, such a bummer.
170 packs got 11 legendaries (including golden), got 1 from reward track, one from preorder and ofc free Silas.
After opening I'm missing 12 legendaries and 4 epics. That was pretty lucky opening for me. But I must admit, my 2-3 previous expansions where complete garbage with hovering around 30 packs per leg on average.
I really have to quote myself but first pack i got today (reaching lev 20) gave me two more legendaries. This must be the best opening by far.