Spectre's Immortal shoulder item, Transversant Soul, only applies its custom effect to the thrown dagger, and not to the trail effect that follows an affected hero.

Additionally, her Infusable weapon, Edge of the Flowering Shade, has... melted? Or something? The glowing blade is bent severely, both for the base and Infused styles, and it's often noticeable in-game. It seems to rebend at random angles every time her model is loaded, but it's typically more severe in the loadout.