Blinded by Blood talent

Does this talent work if it’s another teammates’ bleed? If ogryn, veteran, and other zealots with bleed on hit can get free 15% damage by Zealot existing then that’d be pretty huge spike in overall damage. Regardless this node makes bleed rending knife even stronger which I’m already a big fan of.

You mean uncanny+ flesh tester?
Yeah, should be clarified what exactly counts.