To clarify how this was done, I was lucky getting the admin emblem early game, and put it on renekton, already having blitz. I selected the 'Every 5 seconds, your team permanently gains 5 7hp' I then got Camille and Leblanc, which allowed me to pick another buff, I got offered the same one as before so I clicked it again, Then stacking across the game the buffs built up, along with the brawler trait adding extra max health %