What are the best Un'goro cards for Arena

I look into what are the 10 best cards that we got for arena on a class basis from Un´goro.

Note that his means that each class is not in this list, these are the 10 top cards, not the best card per class etc.
 For example mage is not in it, so they did not get to many personally good new cards.

However, do not the list does not include epic nor legendariers.