Vicrul is a human Knight of Ren, the most Force-sensitive of the band, who serves first under Ren and then under Kylo Ren. He first appears in the Force vision shown to Rey in The Force Awakens (2015) and was portrayed by the martial artist Anton Simpson-Tidy in The Rise of Skywalker (2019).
His weapon is a phrik scythe with an ultrasonic vibro setting, and the reference material is specific about his belief: he considers himself a harvester, taking something from each person he kills. He died at Exegol in 35 ABY, killed by a redeemed Ben Solo. Canon.
Catalogue entry. This figure has a verified record here rather than a full write-up — the encyclopedia labels its own depth instead of padding it.