I have an idea for a team comp: duo tank bot(one person gets sightstone)
What this would serve is to have a better front line while also opening up more damage dealers in the other roles.
The objective of the lane is to push and farm while surviving ganks easily with their cc and disengage(Gragas, Cho, etc.) and offer engage for later(Sejuani, Malphite) or to be fat protectors for the team(Tahm, Sion).
Duo relic shield would help with sustain in lane and also transition to the point where they become unpushable in lane. You can also run a bruiser with a tank.
A sample comp could be:
Bot: Sion and Gragas. Top: Lulu. Mid: Varus. Jungle: Kindred.
Thoughts?