Vigna is the Elect of the Divine Discernment, and a real arrogant piece of work.
This section contains spoilers for Road to Palisade.
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Fingers is actually their twin sibling. While their crew tried to get away with the Throne, Fingers and Vigna engaged in a dramatic chase through the museum area of the Divine, swordfighting with weapons they found there. Vigna disarmed them and began to gloat, but Fingers pulled out a gun and shot their now ex-sibling, and was able to assume their identity.