How to diference promo cards

Hi,
i am sorting my vtes cards and i dont know how to difference The Baron from BL and The Baron from promo set.

Help please

There is a set symbol in the top right corner of the cards. The Bloodlines symbol is a white ankh over a blood splat.

EDIT: this one

Coolest difference, IMO was the red sign on flames of insurrection.

I think possibly a alternate color expansion symbol could be cool for promos, but it would be really awesome if we could just get like a silver Black Chantry logo on promos printed in the near future. (EC time near future would be amazing)