Pay to get to ranked series
With the ranked LP system as it is I always seem to get in the 90+ LP range. With never knowing the kind of teammates you are going to get, this makes being so close to getting to a promo series very frustrating. I think Riot could introduce a option to pay lets say a $1 to get to a series once you are in that 90 + LP range. This could be a great way to keep the game free but create a revenue stream for riot that doesn't exist. Also could help with some frustration of the ranked system and matchmaking. I see people spend rp all the time on that stupid ARAM skin boost. I think people would no doubt spend that to get to a promo.