you go on Nexus Blitz, and pick your primary role:
1. pick fill == doesn't have to pick a secondary role
2. pick lane == have to pick secondary role (but if you're not getting lane then you're obviously getting jg)
3. pick jg == have to pick secondary role (but if you're not getting jg then you're obviously getting lane)
there are only 2 role outcomes for Nexus Blitz map. it doesn't matter what you put for secondary role, it's basically always "fill". petition to remove this extra 2 clicks time waster. change my mind.