The Fire Tetssiga and The Soul Tetssiga

Appearncess in Sunshi Higurashi Sunshi finds the sword and uses it agenst evil demons but since he's poossed by the sword he turns evil and attacks Inuyasha and the gang. The Fire Tetssiga is Sunshi's weapon to posses demon powers such as fire attacks like iron fire soul stealer and Heat Wave. His angre issues towards Inuyasha grow even more. The heat wave has the ability to burn demons to death. Dark Fire is the swords last power up which Sunshi can use it to take on demons by turing the blade into a darkish form of fire and uses it a long dark blade coming from the sword once thrown. The Soul Tetssiga is a sword that Sunshi uses only in the third film. Tifoune Of Souls.