If I get another Metagross would it be worth it change with Virizion (My only GRASS type Pokemon)?
No. You would then have no grass type, therefore to advantage over water. You would also have 2 Metagross's, when you really only need 1. Hope I helped. :)
No, your getting rid of one fire weakness for another. 2 metagrosses is pointless on a team. It's hard to answer this without knowing the team though.
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