Leveling 6* champs
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Why is it that it requires more iso per level to level up a 6* r2 than it does to rank up a 6* r3? All of these champs here are a similar level yet bishop is needing nearly 30k iso per level and Hercules is needing 27k iso whereas dragon man is only needing 25k iso? This feels a little odd to me lol 
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