First I would like to present certain topics and then we can discuss.
We all know who the real baron'' escaped'' when the summoner's rift was erected, but the journal of justice:
'' He was such a fearsome and powerful beast That even the armies of Demacia and Noxus steered clear of the river, unwilling to chance an encounter with the Baron.''
This means that they knew of the existence of the Baron, and yet, built the arena in the middle of the Serpentine River that was the home of Baron.
Why?
If the Baron was so strong, why risk it?
If the copy needs 5 champions to be dead, imagine the original.
But I know why they created the summoner's rift, to capture the Baron.
Imagine the scene, an impending war, a monster that destroys armies, and an arena as a front to gather the best champions to end the beast, or rather capture it.
With control of Baron they could win the war and reign over Runeterra.
But Baron was smarter and fled.
But a hole was left, a hole for the real Baron.

This is mere speculation, but who knows ...

Read this hearing: http://www.youtube.com/watch?v=mLByb...eature=related


Also sorry for my english.

It doesnt need 5, I did it as jax with a teemo c:

''==
I am just saying the normal is 5 people...

the expected is 5 people but it can be done solo now as long as you have the right items
but we be talkin about lore here
yes the baron is a fearsome beast that none have ever fully seen and lived to tell the tale
for all we know it could be half the size with 5 heads
or 3 times the size with huge tusks
maybe it has tentacles or seal flippers
the current baron is a construct based off the stories of people who "claim" to have seen it
but the truth is we have no idea and when it does come back to claim its territory i fear for what the rift will be like
also the original baron traveled all up and down the river but the construct is kept in that hole in the baron pit.

imagine crossing the river one game to go invade the enemy jungle and BAM you get eaten by the baron. you get a glimpse before you die but he is gone before your screen even turns grey
my god