Its because you fight sd57 at stage 58. That is why you got more gate keys compare to your friend at stage 20. Is not because of stage but who you duel with.
just because he low in stage so get low duelist level --> get lesser key.
However it does not matter, the fact is it affected by duelist level only since I in stage 60 and fight lvl10 LD in duel world I get lesser key also
Duel Novice
Anoymous
