Source

99 First Light RelicsPilgrim's Traverse - Sack of First Light

Item

Forgiven Mimicry Resonator

Description

Summon forth your forgiven mimicry. Not actually a sin eater, so it can be ridden without fear of turning those around you into one.

Journal

Found prowling Pilgrim's Traverse, this motley creature appeared to be a sin eater at first glance, but is in fact a variety of ambulating plant. It is believed that it learned to assume its present form in order to survive in the Light-flooded First.

Tooltip

I don't think anyone can truly mimic your unique strengths.
   - Jessie