Even the scabbard isn't exactly invincibility. He could suffer wounds, he just would not bleed out and would recover from them.
So what we basically have is a legendary warrior with an unbreakable sword (who by some accounts also shined bright and could make it hard for foes to watch) who won't bleed and has a healing factor, but I think that'd still leave him outmatched by Weapon X.
Match-Ups with nods (number of nods)
Chun-Li, from the "Street Fighter" franchise vs. Elektra (3)
Whitebeard, from "One Piece" vs. Juggernaut (1)
Dark Schneider, from "Bastard" vs. Dr. Strange (2)
Optimus Prime, from the "Transformers" franchise vs. Cyborg, Colossus & War Machine (1)
Azula, from "Avatar: TLA" vs Elektra (1)
Frozone & Mr. Incredible, from "The incredibles" vs Ultimate Cap & Spidey (1)