take a look at Yu Yu Hakusho and look at Team Masho during the Dark Tournament series. Touya the Ice Master uses the ice sword on the arm thing. Thats what it makes me think of. I was contemplating the Katana also, but the only problem is thats really cliche too. lots of "cool character that summon swords" use a katana lol. thats why I went with a slightly broader sword. as for square-ish....hmmm well the only part I can see that is really like that is the tip and that is because the outline is a dark color so it ends up blending with the shoes kind of. If I lighten the color then it is hard to see over the ice >_<