The 6*, +15 didnt make sense in my eyes.
heroes has only 5*, gear has only 5* ... the 6* runes must be a mistake....
the most player didnt have 5* runes and will fall behind even more then now. Some payer 2mio power while the most top player didnt reach 1mio
Think about what happen if the 2mio player get 6* runes ...
+0 - white
+3 - green
+6 - blue
+9 - purple
+12 - orange
-> +15 - black runes (new colour)
Thats something we can and should talk about.
I would like that +15 runes get a new secondary bonus / higher existing secondary bonus