It significantly helps the mid laner as when they come into lane they hit level 2 as soon as they kill like 23 minions , and most mid laners have at least 2 clearing tools which then allows them to get pressure in lane and rotate the fastest which , for the mid and jungle is the most crucial thing about the early game . It doesn ' t really help duo lane that much but I think you hit level 2 as you enter lane too ? I ' ve seen some plays where duo do back harps and damage buff , go to lane , clear and come BACK to do back camps , it helps if you really need the early wave pressure . You really don ' t NEED a particular comp to do it , its just that if your clear really really sucks like having a freya then you might consider not doing the back camps . The mid laner simply autos the back camp 5 times to build up soul stone stacks , then clears damage buff to consume stacks and help do extra damage , occasionally some gods can hit both buff and back camp but you wanna do it with players you ' re comfortable with and can communicate effectively .