fk did 4 lights and 1 dark.
Even with 4 darks constantly energizing (manual) it was hard because of what they did.
when u chain manual you still have to take small breaks to defend/attack so it's not a constant chain and thus you can't just sit there and hold down drain until their absorb wears off.
Trust me man don't base what you see now in teamffa as what it was like back then.
That script made every possible strategy other than having a bunch of darks drain whoring totally obsolete and sadly there were a lot of different and *effective strategies prior to it.