Still stuck in silver 5 because 1 win = 13 lp and 1 loss = -22 lp

nah, you dont need 500 cs for masters, but having less than 20 cs behind the timer probably would be very helpful, as in almost necessary (cept for supports)

Basically, you don't NEED 500 cs, but you will need high cs relative to your role to get to masters

I added in CS as a way to boost your MMR because a lot of low elo players focus on their KDRs, not the CS, but the CS is extremely important as it can keep your MMR high even if you lost, and also positively affects your KDR.