Porygon2 was just plain meant for the legendary birds. Use it for Neo Genesis Lugia, and use it for this:

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Absolute best-case scenario, You have dual-color deck, and you have 2 Porygon2s on your bench. 1 each of your 2 colors, and 2 Energy Converter-ed energies. That's 70 with absolutely no drawback! Awesome!

                                                          Fly Right,                                              

                                                        Nite Owl