I'm a level 6 Shin'hare Cleric, and I am really struggling with this one. I can (normally) get through the first 3 fights pretty easy, but once I get to the King, I just can not seem to break through. I and on my 3rd run so far and I've lost 10 times in a row, even with some of the Stronger cards like [Walking Hive] and [Adaptatron]. I am assuming I just do not have the right Cards.
The most obvious Answer for more, is to grind to level 7, where I could start using Diamond Cards, but I wanted to see if there was a easier option first.