WRITTEN BY RIYA DUBEY
Shinobu's Blade is very unique. It is not exactly a nichirin blade but is a rod that holds poison which she injects into the demons.
Rengoku's blade was quite simple but efficient. He was able to protect the passengers of the train with the blade, but he wasn't able to defeat Akaza.
Giyuu's blade is very durable, he was able to use his breathing technique against Muzan even after the blade broke.
Sanemi's blade is also very durable. He was able to clash swords with Kokushibo's sword and his sword didn't break or crack.
Tokito was able to defeat an upper rank with no assistance. His sword also played an important role in the fight against Kokushibo.
Obanai's Blade perfectly mimics his serpent breathing. It can twist and turn and slither which makes it very unpredictable and strong.
Tengen uses dual nichirin cleavers which are connected through chains. These blades gave a hard time to the upper rank 6.
Her blade is more of a whip than a blade. It allows her to attack more flexibly and unpredictably which makes her very powerful.
Gyomei uses an axe and spiked flail which are connected through chains. His weapon is so powerful that Kokushibo wasn't able to break those chains.