Riot! Please consider this for when Runes are free. what to do with IP.
My girlfriend and I have been racking our brains on options for IP usage after runes become free. And ARAM came to mind. With it's ability to spend RP for your team before match. Sometimes, when you're in the champ select... You get that sinking feeling that a games not going to go well. But you decide to stick it out, fight the good fight.
What if you had loads of IP stored up.... and there was a loss prevention gamble? Something before that ranked match starts.
Example: Spend 1500 IP, 1 time Loss prevention. (Just for you personally, not your team)
If you won? You lost the IP, no biggy. Better safe than sorry. However if you lost? It's okay, you worked hard for that 1500 IP.
Perhaps this option would be disabled in your promotionals however, to keep the sanctity of that (Maybe, maybe not). I don't feel this would break the system, because you wouldn't be able to spam this. It would also feel appropriate for a currency known as "Influence points"