Normally for me I typically have good luck on day 1 of expansions when opening packs and getting multiple legendaries but not so much this time around.
100 Packs total, Going in hearthstone packs left order:
90 = Keleseth
69 = Garrosh
64 = Bolvar (Golden)
33 = Thrall
And that was it. Epics weren't kind either. Granted I managed to get 21 epics but 3 were a triplicate and 8 others were duplicates resulting in only 15 unique epics.
Does the legendary pull sound right with the change in the pity timer? I thought it was 1 in every 10 packs but I'm recalling something about that being China only?
The chance of finding a legendary in a pack has always been approximately 1 in 20, with a "Pity Timer" that guarantees at least one after 39 packs without (see https://hearthstone.gamepedia.com/Card_pack_statistics#Rarity_distribution). There are no known differences between regions. The only change since Frozen Throne is that players are now also guaranteed at least one in the FIRST 10 packs of any expansion; after that the regular pity timer kicks in again.
You are now slightly under average (1 in 25), but your pity timer is already at 32 so you're guaranteed another one after at most 8 more packs - and at that time you'll be a bit closer to the overall average. (Still below, but not by much - just statistical variance at work).
I opened close to 100 packs, got 6 Legendaries, plus my first ever gold Legendary. I came away with Bloodqueen Lanathel, Archbishop (gold), Lillian Voss, DK Garrosh, Hadronox, and Sindragosa (gold). My favorite classes are Warrior/Mage/Priest and I don't like playing Warlock (so OF COURSE I open the Warlock Legendary). I'm giving serious thought to dusting Sindragosa and craft the Lich King.
Got unlucky with this expansion ... bought 60 packs with gold and got only 3 legs. Also noticed that I actually got more dupes out of it than from Ungoro... common ones. but oh well RNG is RNG... crafted other legendaries I wanted with dust ))
Six legendaries out of 197 packs feels incredibly low, and when three of them (the Princes) are outright trash mode, and two of the others questionable at best, it feels really bad :(
that's 32 packs per legendary. That's about average.
Given the rest of the thread, it looks like the system is about normal.
Note that someone analyzed that the new system actually isn't that big a bonus to people who buy a lot of packs. It's a bonus to your rates but a SMALL one. What this mostly benefits are the folks who buy about 10-30 packs as before they could easily go without a single legendary and now they can get at least one (and most times 2).
So the VERY small fries got a big boost while the folks who buy a lot really should be feeling business as usual, except that you won't double up on a legendary.
Got 16 in 250 (1 gold) for 1 in 15.6 pack average. Going by 1 in 20 being normal odds, that would equate to 12.5 expected (round up to 13 or so for the 1 in 10 initial). So a bit of a high roll.
Un'Goro pack opening was really frustrating for me, so I'll take it.
Interesting tidbit...after 250 packs I'm missing 6 legendaries and 7 (unique) epics (22 epics total). So kind of weird; but it does feel better not getting 3 of one Prince and 2 of another in the opening over getting 5 copies of 4 different Epics but none of 7 others.