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Thinking of doing a White 2 run with Pokes I've never used in game. To make things interesting, I also want to use Pokemon that are kind of crap, but could work if you play things right. The following (and their entire line) are excluded as I have used them:
Samurott (only gen V starter I've used), Crobat, Starmie, Heracross, Zoroark, Arcanine, Krokoodile, Chandelure, Galvantula, Darmanitan, Magnezone, Lucario, Haxorus, Excadrill, Leavanny