What a lot of you seem to be missing, is that this is not a free to play game. The terms of service state:
"You may be eligible to play for free during a Free Trial or Beta test period."
What you get is a free trial. However to play the game fully (i.e. get past T2), someone needs to pay for you. You can pay yourself, or get a friend/family member to pay. Other people may pay out of the kindness of their heart and just give you CE, others will ask for crowns in return (i.e. the market).
Stop expecting the game to be free. If you want to play it fully, you either need to pay, or find someone who will.
I just played SK and needed to get more EC then i remembered i don't have 7000 crowns to buy 100 energy. We need to get that price lower then that can fix a energy problem. I remembered when it was like 3000 and i thought it was a lot. but now that its at 7000 that's truly too much. Another thing my friend brought up something that make sense. If SK had lots of new stuff added then people will want to buy more energy. but since there's not much to really do people don't want to pay. I mean more bosses will be nice and maybe more Tier levels. even armor or something will do. As long as there's something to keep the game active and fun people will keep playing and buying energy, but wait forgot i might be useless since its hard to get energy. well this is my last idea for now and its to make the max mist energy u get like 150 or 200 then u can do more in a day.