Dark souls 2 how get dragon scales

How to get dragon scales on Dark souls 2 if don't have online rank 1 need 10 scales rank 2 need 20 scales rank 3 need 30. Rank 2 you get the black dragon armor rank 3 u you get the black dragon greatsword 4 the dragon covenant have bloody good time


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https://store.playstation.com/#!/en-us/tid=CUSA00572_00