Berzebub Card Quest
Pros: This card reduces casting rate by 30%.
Cons: Reduces SP 15% and HP by 5%.
Items required:
15 Emperiums (Orc Zombie - Orc Dungeon 1)
600 Withed Starsands (Bathories - CT 1)
400 Clock Hands (Clock, Alarm, Clock Tower Manager - CT 3)
20 Worn out scrolls (Bongun - Payon 3)
2 Bibles (Evil Druid - Glastheim, Churchyard. Or buy it from the NPC)
2 Wands of Occult (Marduk - Sphinx 3)
100 Opals (Zombies - Payon 1)
2 Tiger's Foot Skin (Eddga - MVP)
This card is useful for Mages/Magic Users. If you have 3 or 4 of the Berzebub cards equipped, you don't have to apply Status Points on Dex. In this case, you need Int. So apply on Int.
Also, this card is used for other quest. I'm not sure if it applies to all servers but I'm going to have a look at it soon.
p/s: The monsters mentioned are easier to find or come in mobs, so you'll get the items faster.