Minimum combined odds = 3 and get an additional upgrade on your final odds.

Packs:
3 odds combined = 5%!
4 odds combined = 10%!
5 odds combined = 15%!
6 odds combined = 20%!
7 odds combined = 25%!
8 odds combined = 30%!
9 odds combined = 35%!
10 odds combined = 40%!

well check out this promotional packs too if you are placing more bets