I've seen one steamer tried to complete GvG achiv. He saw in achiv screen that he missed 1 epic and 1 leg, while in collection he missed more than 1 of each and had to craft things randomly. So may be it was tracked back than. 

I think the key point of the question is "to get achievement points". If you owned some card and disenchanted it, it still counts towards set completion achivement. So there's no easy way to find out what you miss and need to craft, especially for old sets.

here,  here

They did.

Quote From Author

Own the original golden, or achieve 50/100/250/500 wins in a class for that class' Golden Core Commons/Rares/Epics/Legendaries. (10x that across all classes for Neutrals)

Not much - just arena card

"Can people who have the new patch post their levels and the XP needed, so we can build a chart of the new level progression structure?"

Lvl 25 -> 26 3400 (old 3450)

Lvl 26 -> 27 3500 (old 3600)

Lvl 27 -> 28 3600 (old 3750)

Lvl 28 -> 29 3700 (old 3900)

Lvl 29 -> 30 3800 (old 4050)

Lvl 30 -> 31 3900 (old 4250)

Lvl 31 -> 32 4000 (old 4250)

Lvl 32 -> 33 4100 (old 4650)

Lvl 33 -> 34 4250 (old 4850)

Lvl 34 -> 35 4500 (old 5050)

Lvl 35 -> 36 4750 (old 5300)

Lvl 36 -> 37 5000 (old 5550)

Lvl 37 -> 38 5000 (old 5800)

...

Lvl 49 -> 50 5000 (old 9300)

This desk dumps it's hand so fast that you often sitting with empty hand. So it's basically 1 mana 1/3 draw a card.

Because it's not clear yet how easy it will be to gain the same rank as in prev month with new system. Before I needed only 20 stars to get where I was. Now it seems that I need to play more to gain roughly the same amount of dust. For rank 15 players it's even worse.

golden epic - 400

2 golden commons - 100

5 dust

and it's rank 5, not legend.

So not SO much more dust than before.

Also this twit: https://twitter.com/Celestalon/status/1240360229113483264

But obviously this month it's not working as described. I got 10x bonus for rank 5 and 8x bonus for rank 15 on other account.

They're not golden now. 

Well, it's Blizzard - Anyfin Can Happen

It's from reddit, but it's supposed to be from some Blizzard employee.

"It's 1 more bonus star per rank:
Legend = 10x stars per win
Diamond 5 = 9x
Diamond 10 = 8x
...
Silver 5 = 3x
Silver 10 = 2x
Bronze 5/10 = 2x

You may additionally get a bigger Star Bonus if your MMR is higher than others at your rank (so high legend players could get 11x Star Bonus). This also helps players who reach legend one month and only play enough to reach Bronze 5 the next month. They will get a Star Bonus closer to that of a Legend player." 

And it means that if your MMR high enough you'll get +1 star.

There is minor misinformation. Bonus for Legend is 10. 11 is for high legend.

Compare it with [Hearthstone Card (Shovelfist) Not Found]

Actually it's March 26 not April 7.

But then it whould be better then Fresh Scent, which is not fair...

Does anybody know why event on EU ended earlier than on NA? Today on NA account I got event daily quest, but on EU just normal 50 gold one. 

My favourite moment of '19 was probably announcement of purchasing wild packs with gold. have been waiting for this. 

Next step for '20 - much cheeper non-standard packs. Right now wild is too overwhelming for new players.

Most likely won't find place in constructed decks, but it's good arena card. It's like a Corpse Raiser only for enemy minions and for 3 not 5 mana.