In order to rush into battle, you have to stand in line first. Prior to season 7 in the League of Legends, only Solo and Duo queues were presented, allowing you to wait for a battle alone or with a friend, but from the 7th season developers added so-called dynamic queues that allow players to wait for battle in groups of any size.
This queue format meant that you would wait for the battle alone or with one ally. This format allows you to make new acquaintances and, perhaps, lay the foundation for the future team. This format is great for those who focus on their own game performance or don't have a proven team. In order to unite with someone, it is necessary that he belongs to the same Tier as you. Existing restrictions on grouping (Tier and potential allies are indicated below):
This format exists so that teams of several people can expect a battle together, as well as for those single players who are focused on teamwork and want to feel as a part of a whole. As soon as a team gains 5 players, the formation process is over. The limitations of this format are much simpler: you can team up with players of +-1 Tier (except for Iron who can collaborate with +2 Tier players (Silver)).