New game type: Survival
I've always thought League needs a cooperative game mode that lets players build a better sense of friendship. I believe that a survival mode would be a welcome addition to the League of Legends scene.
My thoughts on how it could be structured follow:
Back story- Science is truly put to the test, as Piltover is threatened by an oncoming force of undead from the Shadow Isles. While Caitlyn and Vi are on the case, Jayce has been put in charge of it's defense. Calling upon the Institute of War, a force of champions is gathered to defend the city.
Map- Set in the city of Piltover, a team of 4 champions must defend a Nexus that is protected by only two turrets. The map could be triangular in shape, with the nexus at one tip, and the enemy flooding in from the other. The gritty and futuristic setting would truly demand the player's best efforts to defend the city from impending doom... for the sake of science!
Enemy Forces- Leading the undead horde would be a vanguard of sluggish, ugly, and typical grunts. Melee minions and caster minions to be blunt. However, soon siege minions and even super minions join the fray. Even clones of certain champions have been sent force to wage war. The source of this cloning magic (or perhaps technology?) is unknown.
IP- After selecting their champions, the summoners are offered a chance to bet IP. The higher the wave, the more IP they can bet. This system would be inefficient in terms of abuse. Betting 1 IP for Wave 1 would only net you 1 IP. But putting you IP where your keyboard is could score you an extra 50-60 IP.
Final Thoughts- Now this is in no way perfect. I am no game designer. It is only an idea. Share your thoughts, you never know; you may just give good advice on the next League of Legends Game Mode.