Yeah so you can write ideas for new champs, if you want you can write their abilites,lore and so on. Lets see what the community has! Who knows maybe Riot will look at this thread and may choose one of yours champs! cmon start posting!
I will start, what about a champion who can control minions.

The champion is no good at ad or ap and is manaless, but its abilites are that you can use your minions to shield you from damage(absorb it), you can add all the miniıns together and create 1 big bad minion who will attack enemies, and its ultimate will be that you can control dragon for 10 or baron for 3 seconds! how do you guys feel about it?