Charlotte Caçador, probably the best card that came out with RwR (the other one was banned). For the low price of 2 influence, you get another kind of NGO Front. You never lose with this card.
This asset combine really well with La Costa Grid, Mitosis, Kakurenbo and Cohort Guidance Program, which get you advances clicklessly in faction. But it also combine with cards like Business As Usual. There are other cards that can put advances, but those are really specialized for fast advances (like Seamless Launch and The Holo Man).
But this combine really well with two identities : Weyland Consortium: Built to Last and Pravdivost Consulting: Political Solutions. BtL makes the action of putting an advance on Charlotte a positive action, while Pravdivost get a free advance on it when the runner interact with the corp.
Into an glacier type of deck (a deck that score behind multiple ices), Charlotte is perfect. You get credits and draw, while the runner must either spend a precious card like Pinhole Threading to take it out or spend lots of credits to force you to trash it (in which case, you just do not lose any credits).
Finally, at 2 influences, this card can be splashed easily out of faction. What a bargain.
Art wise, it not only represent a nice scene in the world of netrunnner, but is also used as a cover image for the most watched stream. All of which synergize with the name (Caçador means hunter in portuguese) and quote. Fantastic work!