So everyone knows how much time and work goes into getting 6* heroes. And when you dupe one, it just plain hurts unless their sig is useful. I personally find it rediculous that duping a 6* gives the same rewards as duping a 4* at this point. 24 class iso, a tiny amount of gold, and 20 sig levels on a sometimes useless champion. In my humble opinion, duping your 6* you worked on getting for months should give some kind of greater reward, maybe a whole lotta 5* shards, or 6* shards, or maybe even a 5* ag.