Reminder: show 'champion chest received' in champ select.

At least for ARAM.

I've gotten so many chests with random champs I usually don't play in ARAM that my memory keeps failing me and I forget with which ones I already earned a chest.

If the available champion pool doesn't give you anything you fancy it at least would be nice to consistently be able to keep or reroll for a champ you haven't gotten a chest with.