Scythes in anime are rarely just a long stick with a plain curved blade.
The swords can be as big as your body. The sheer details that go into them are amazing. For instance, in the first picture, this female's blood is the best weapon against these monsters. So, she has this sword (katana) with grooves along the blade. When she cuts her thumb on the top edge of the katana, while gripping it to draw blood, the designed grooves allow her blood to flow into the channel and become distributed throughout the katana. Now, she has a weapon with her blood in the blade. In the second book of my trilogy, all my characters wield a sword with varying degrees of skill. Some favor the weapon more than others. None of their swords look or operate like an ordinary blade.
I talked about this one in the post I mentioned at the beginning. It's both a weapon and a power. I put this one in its own category because it's my favorite type of weapon. It looks like an ordinary sword but it transforms into something else, something more powerful. The race of beings in my series use their blades as way of channeling their power to attack their enemies. It's created from the power they keep inside themselves.
My characters use blades or their bodies as weapons. The humans use guns more but I had to include the one below because it's so anime. In anime, you have guns that don't look like guns and do more than just shoot bullets. This gave me the idea that, out of fear, humans would alter their weapons to be able to kill my non-human characters.