Ghost Powers? I Copy Them All

Ethan Graves transmigrates into a terrifying realm and gets trapped in the Knocking Ghost dungeon. Sacrificed by corrupt officials to open the deadly door, Ethan unexpectedly awakens a supernatural replication system. Instead of dying, he copies the ghost's power, knocks back, and beats the entity up! Turning from a nobody into a powerhouse, Ethan begins his unstoppable journey across dungeons, stealing every ghostly ability he sees.