>>23387158
>Starter decks are like $12 MSRP
>Buy the one with the White Base crew and the one with the Zeon stuff
>OYW Feddie cards in that deck are all Blue and make up the majority of the decklist (30 cards)
>OYW Zeon stuff in the other deck is all Green and has 22 cards in it
>Take the two halves you want and cut two cards from them (Probably the GM would be best to bring down from 4x to 2x since basically just a vanilla bear)
>You now have a legal deck of questionable quality (Since the Zeon deck is all about go-wide Aggro while the other one is more of a mid-rangey control deck)
>Trade away the WFM/Neo Zeon stuff you don't want to people at your LGS for cards you actually want

The only long-term problem is that you're neutering yourself out of the majority of the cards from the first set of starter decks/booster packs. Pouring through the card list from the booster the color breakup looks like this
>Blue - EFF (Both OYW and Unicorn era), OZ
>Green - OYW Zeon, Wing Gundams
>Red - Neo Zeon, ZAFT
>White - WFM, Seed Earth Alliance

In theory there's nothing stopping you from making a mono-green OYW Zeon deck since there's payoffs to it like Big Zam here, you're just limited to like 11 units, 1 pilot, 3 command, and 1 base card from the booster set alongside what's in the starter deck.