We have different kinds of agents (fire, water, air, earth-based, etc) and maps (underwater, snow, desert, beach, city-based). Props to Riot and Val developers for creating complex stuff like these. What kind of agent and map do you think...

Since the RR reduction is only for high elo, specially for the Radiant rank, you can think of this 5 stack queue almost as a different mode completly but inside the regular soloQ. I think they want to focus on people that want the full team...