You’ll just get more dupes. Opened 3 and not only were they all dupes but 2 were the exact same card. This is ridiculous for something you can only buy a limited number of anyway.
big box of the set was equally wasteful for me, 2 rares and neither of them appear to be useful
I am a sad panda now 
I got 3 new mythics but they were all jank, I hope others have better luck with it.
I like the idea of the mythic packs, and probably priced well, but I don’t want to risk the dupes..
It’s probably a great deal for newer players or anyone not fortunate enough to have many mythics anyway
I’d be more likely to go for it if there was a mythic pack for each card set instead of lumping them all together.
I assume you have to do your own personal calculation about your chance of something new from it. For most the chances of something new will be quite good. But not all mythics are equal, either.
So it’s going to be on an individual by individual basis.
I pulled one because I had the crystals and was quite happy with the new Day’s Undoing I got.
Same, with my shiny new Battlepig.
Is this a joke? This is the best value they have EVER given. 350 crystals for a mythic is a steal and really nice for new players.
as above, compared to what they have offered before this seems like a good deal… and again it has to do with averages and however they seed mythics against an account. If you already have pulled 8 mind dilations possibly expect to pull another one. If you have 52 mythics chances are you’ll be getting a dupe.
for newbies though this is a great offer
It’s a great deal, but has diminishing returns for those with more mythics..just like big boxes do. This is an excellent way for people to try to strengthen their collection without risking all their crystals.
I Bit.
I’m a bit of a gambler anyways. plus I’m hunting for Olivia or Nissas renewel imaging my hope when a green gem appeared
got a Dupe SP. oh well. that’s the risk we take
I don’t even have that many mythics, I have 19 out of about 117 total mythics? Give or take a couple for whatever is exclusive this set. You would have expected at least 1 new mythic given that. Or at the very least to have gotten 3 different cards. I got 2 Behold the Beyond and I’ve already pulled 2 before.
Credit where it’s due though, in theory this is a very nice idea. The value is definitely there if you don’t get a dupe. Unfortunately as seems to be the case with this game, most things are inevitably dupes that you can’t do anything with.
It’s a massive kick in the teeth to spend 700 crystals to get 2 of the exact same mythic dupe.
3 dups. 
i was about to post a similar rant…
Yeah 100% agree that getting dupes suck for this offer!
I’d be more comfortable if they charged more gold but said you will not get a dupe at all.
I can’t complain, I got 3 new mythics out of it.
I can’t imagine what they charge for a garunteed mythic non-dupe.
Got myself some shiny new Pyromancer Goggles. Now… to work out how best to use them?
Can’t believe I created an account and broke out of my lurking to post this but…
My mythic pulls weren’t horrible, got Kozilek. Can’t even remember the other two cause i’ll probably never play them.
More disheartening are the three big boxes of the new cards i opened. Grand total of 1 mythic, 6 rares (2 of which were dupes) and the rest was all jank. And ALOT of packs were 2-3 of the same card. Yes i had one pack where i opened three of the same exact card. I was flabbergasted.
Would be interested to know if it was just bad luck or if the drop rates have been tinkered with. Usually in the past a big box would net me at least a few rares/mythics (6-7 per big box). Maybe rose colored glasses? But I doubt it.
I only speak up about it because I know I’m a whale (more Beluga than Humpback) and honestly I don’t see myself investing anymore in this game if the drop rates are going to be this piss-poor.
Is it technically a “pack” if it only has one card in it… 
I got two new mythics out of the three tries and I had 43/93 mythics prior to trying. It’s all a matter of luck.
Not sure where my original reply went…
Seriously avoid this BS unless you are a brand new player. As in started this week and have 0 mythics.
I only had 5 mythics from the pre-K sets to start with and managed to pull two dupes. After spending 1050 crystals I went from having 5 mythics to 6…the new one being terrible.
Well done on the card distribution coding guys. I went from being stoked for this expansion and the new deals to done with the game for a while. I was toying with spending the money to try my hand at a blue/white deck this weekend and now I may just consider sunk cost and walk.