Primitive Ritual
From Arkham Horror Wiki
Primitive Ritual is a cult encounter. It first appeared in the Miskatonic Horror expansion.
Card info
"The cutting and burning of the flesh pushes the mind into the dark places, if you can endure the pain."
Make a Fight (+0) check and gain 1 Clue token for each success. If you gain 3 or more Clue tokens, draw a Corruption card.