User blog:Iceymans6183/Need a 6th Pokemon!

Hey Guys! I am currently playing Pokemon Leafgreen. I know, I'm kinda late. It was released in 2004, and I'm playing it in 2014. Here is my current team:

Kadabra, Mewtwo, Dragonite, Charizard, Magneton

Can someone suggest a pokemon that I can obtain WITHOUT trading or hacks. I will also be replacing Mewtwo, so can someone suggest a 6th Pokemon, and a pokemon to replace Mewtwo?