So i opened 9 of those "hextech mystery champion"
I had 22 6300ip champions left and 22 4800ip.
The 9 "random" champions i got were 8 worth of 4800ip and 1 worth of 6300ip.
Veery random.
Edit: Also note that each time i get a 4800 champ the ratio between the 6300 and 4800 champs changes so its even harder to randomly get a 4800. After 5 4800 champs for example i had 22 6300 ones and 17 4800.
