Both have unlimited energy, and there are no legal implications. Neither will get through airport security. The lightsaber has one blade and you can choose between light blue, darker blue, green, red, or purple. Also, please explain why you chose what you did.
I picked energy sword because personally I think it's just more badass looking. Swish, swish, death.
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Light Saber has more uses than an energy sword. I mean, I'm not going to go around killing people or anything. I'm not sociopath. I'll need something that I can chop wood with or some shit.