rogues with vulak dagger?

[syztem]

Can any of you post logs, or a video of you hitting 553 backstabs with the current zephiras 11/17 dagger? I have had multiple conflicting reports of people hitting as a 15 dmg piercer, and others saying they are not. Would like to see some real proof once and for all. if it truly is hitting as a 15dmg piercer that means the backstab modifier must be in, although not shown(and not of this era, was added in luclin) OR the stats are just shown wrong and it really is a 15 dmg dagger with the wrong tooltip? I don't know. There is one on red, and I know one person on blue with it, but he always evades posting a screenshot or logs or a video of him fighting with it getting a 15 damage backstab max hit.