Picking support in lower ELO should come with a reward, to help fix dynamic queue

Key fragments are more easily obtained, or for every 5-10 support games you play in a week/month, you get a free Hextech chest.

Getting support when using the "fill" option would not count.

Obviously wouldn't pertain to premades, as the entire team could pick support.

Feels like this would help to even out what you get when you select "fill" when you're bronze/silver/gold and such, since support would be a more desirable role.