I'm quite the cheater guy...
But no. I loathe having a legendary on the team. It kills the challenge of leveling them up and taking up effort on killing people.
I did take some Gen.II Pokémon out of nowhere though, and I don't even have the Nat Dex. So... Their ID number is ??? and I couldn't get Cyndaquil to evolve manually because game doesn't remember who he becomes next.
Porygon2 (featuring the fabled BoltBeam coverage combo -- I paid 7500 GCC for that)
Camerupt (I got rid of Typhlo. Wasn't so much useful outside of power-packed Fire moves.)
Scizor.
Fearow (I was always the Fearow fan. This guy's got the Hyper Beam!)
Lanturn (RainDance-Thunder. Crackle goes the skies!)
Venusaur (the eternal sleeper of the team...)
None fainted... Even though I dodn't quite foresee the slight level gap I had to face... Like, 3 to 5 levels?
All is won, game over, Red defeats Green, back to start + Orange Islands visit.