Summoner champion.
(sorry for my English) Imagine if you smmoner doesnt summon a champion but play the game by yourself. Gold made from minion and turret are yours. You control the nexus, have a look over the map. calling shot for your friend. Putting free temporary ward for your team to see what you see. Minor aoe buff / dmg. Buy item for your tower and minion to make them stronger. Control the number of minion in each wave (3 minions min per wave) Ex: 12 minions top,3 mid,3 bot to help a strategic push. "Watch out top mid and jungle are comming for you, I think you can finish the tower I will give you a speed buff to get away" Item could be like minion's health or dmg or movement speed increase. Item that make minion alway assist nearby champion. Item that buff tower 50% of tower dmg become true dmg or tower deal bonus 15% max health in dmg. HP regen on Tower. Item consumable. that buff 1 minion or Rebuild a tower over time (like 7 min construction) Your level is the team's average Spell could be like Passif: minion and turret have overall buff. 1-18% per lvl. Q: All ally champion speed buff for 4 seconde: 10/12/15/17/20% W: All ally champion have Whole map Sight for 2/4/6/8/10 secondes E: All turret take 20/30/40/50/60% less dmg and attack 30/50/70/90/120%faster for 5 seconde. R: Target an ennemy champion All minion near him create a double of themself and target the ennemy champion in addition minion gain 10/30/50% slow on hit and 100% more Dmg/health
I think this would add a lot of strategy and something new to the game This could be matched with a top bot and mid and a random between jungle or support.