New Champion Idea

I have an problem...

I'm fully out of ideas, and I need help!

Right now, I have 3 considerations for new champions, but not an foggy clue as to which one should I use!

1. An Noxain AP Champion that uses Minions in defensive ways (Nito, the Empty Queen)

2. A pair of Voidlings that mix up AD with lots of Stuns (Tal'Yai and Hei'Kao, the Twins of the Void)

3. An Demacian experiment gone wrong and using the Enemy's AD against them (Diaito, The Experiment of HEAVEN)