You can clone heroes in Gene Bank

1.Orinary clones can not clone a hero rated above blue

2.Advanced clones can clone green rated heroes and above,cloning ten times cansecutively will guareantee a blue rated hero or above

3.Perfect clone can clone blue rated heroes and above

4.Perfect Clone bluesprints can be earned through game events

5.Clone points can be used to acquire purple hero when you reached VIP3