see, unranked/normal mode exists for that purpose
#Remove Minimum Rank Requirement System
hollow quiver
minimum rank requirements is a must otherwise it'll be abused by high elo players to climb rank also it will increase the Smurfs by 3x, you definitely don't want that in your games
If you wanna play with a friend who doesn't play much, play the normal mode with him
vale portal
This idea can work with 5stacks, but that team going to face with highest rank in their lobby