Wolfox

there's a ton of "bad" decks that are fun as heck to play. Genex for example.

Most of that comes because there is a lot of experimenting you can do to try and make it work. You can try to get the good but hard to use Boss Monster out consistently or you can just use a core and mix that with some other archetypes to see if they can work together. and then you may, most likely not but the chance is there, find that your deck can stand up to the meta like a breeze.

I don't play competitive , so i guess it's ok.

Neither do I. I just like fucking around with "Degenerate" decks too much. be it Red, Galaxy Eyes or whatever (I once dueled someone using my Speedroids. Their True Draco's got stomped and I got cursed out. Best Duel Ever)