Instead increasing Rageblade's Price why don't you just make it weaker?

old: Each stack grands 8% attack speed, 4% bonus AD, 4% Bonus AP new: Each stack grands 7% attack speed, 3% bonus AD, 3% Bonus AP

Same Price

Master YI has to literally spend money on the air getting nothing from the AP part

new price 3500 combine prince 1190 Useless book - 435 gold

Master Yi will be sitting on 1625 gold until he finally gets the passive he wants

Champions like Kayle and Jax benefits form both AP and AD. Yi doesn't

http://www.surrenderat20.net/2018/06/65-pbe-update-tentative-balance-changes.html