Yes , the quality of a diamond card is higher that silver and gold BUT!!!
for starters the money is a problem build a good
Silver and gold Card combination
In my own experience
i have a gold card deck but i manage to defeat a deck with 1 epic and 3 legend card
always consider the quality and Combo..
If you have any ideas to share Post it here
Ingame Id:hshshshshs
Friendcode: 7c23c