AHHHH IM SORRY
this is later than when I usually post, but I was distracted by this anime my friend showed me called 'world trigger' it's really good, and I 100% recommend it!

Attraction

When the user bleeds people become entranced by the 'smell' of the user's blood. The user's blood gives off an addictive aroma that people become infatuated by and makes them want to get close to the user physically and keep them to themselves, which leaves them off guard. But this can also be quite annoying when the user gets injured from everyday things like paper cuts, broken glass, bloody noses, or skinning a knee after tripping.

The only major Drawback is blood Loss. It just depends on how much the user is bleeding.

Also, you can decide how much blood it takes to attract people from a distance! I was going to do that myself, but I thought it would be best if you decide.
Minno