User blog comment:GaoMikadoFan 4/Don't know what World to use!/@comment-839017-20150102052948

Honestly, if you can't pick a World to run, I recommend doing what I do: Find a simulator and play everything.

By going out and looking and buying, you only get a rough idea of how a deck feels or how enjoyable it would be, but the end result could vary wildly. Example. When I started, I thought I'd enjoy the balanced play of Dragon World and the counter-based Katana World. Upon playing, I developed an immense distaste for Dragon World, outside the Thunder Knights and Dragon Knights, and Katana World didn't suit me at all. What I ended up finding fun in was the chaotic spell-slinging Magic World, and the somewhat trolltastic Legend World and, on occasion, Darkness Dragon World.

So I can't just outright tell you "Go play this, its the best and you will love it." Just mess around, see what tickles your fancy, and go from there.