It would be 5 champions, withouth gender
They would be from different parts of runeterra
Water - it would be formed with the waters of Bilgewater
Fire - it would be formed with the grand fire and destruction of Noxus
Earth - it would be formed of the earth of the first lands in Ionia
Air - with the caos winter of Freljord
Quintessence - strong electric shocks of the machines in Piltover
They would only be life forms, with the objective of destroying everything in their way
Leaving only caos behind them
The only ones who could stop them would be magic pure related champions in every state of runeterra
Such as - Lux, Taliyah, Ryze, Sona, Karma,
I know it sounds silly and impossible since there are already champions with those elements in their hands such as
Janna - Air
Taliyah - Earth
Brand - Fire
Water - Nami
Quintessence - Any kind of ''machine'' champion in league
But could you imagine, maybe even as a game mode
Where you had to survive those elements all together
Sorry for waisting your time, i just had that idea in my head and needed to spit it out.
My english is terrible, i know, it could be worse.
With that said:
Have an amazing day!