It's still up on playstore for me. Good luck on climbing the ladder! If yoy have any questions, I'll gladly answer them.
I'm glad to hear you enjoy Mazebert so much, thanks! Unfortunately Apple has removed Mazebert from the App Store. They claim that it simulates gambling. I guess due to the random card drops. From what I've read this would be ok for Apple if the game was made by an organization instead of a private person. So currently I'm focusing on the next Android version :-/