So, I was doing a bots game yesterday, because pvp didn't go very well and I wanted my first win bonus. Anyways, I was amazed to see that none of my teammates had keystone masteries. And these players weren't bots. These were real people not using keystones. Anyways, I just think there should be some sort of a reminder in champ select to pick a keystone. You don't have to tell people which one to take. Just show them which masteries they are and explain why they're important.