Get as many teammates as you can

 1) Get as many teammates as you can, d3 items  as each one will give you five attribute points. War of Heroes is nice because you can send teammate requests to people who are playing the game, rather than harass your poor friends. Getting those extra attribute points (up to 25!) in the beginning makes a huge difference.

 

2) If it's not rare, diablo 3 items  it's garbage. Any cards you get that aren't three stars or higher are good only to use to boost your better cards. Yes, I know, some of them have cool artwork, but winning has its price. Fuse them to their highest form, then sacrifice them to a better card.