Originally posted by [b]Brainstorm[/b]
http://www.eathena.ws/board/index.php?autocom=bugtracker&showbug=79
QUOTE
This status ailment is caused solely by the Monster Exclusive Skill NPC CHANGEUNDEAD.
This status ailment causes the following effect:
* The player become Undead property.
* Support buffs such as Increase Agility and Blessing are removed.
* Support buffs such as Increase Agility, Blessing, Heal, and Sanctuary have no effect on the player in PvM
To prevent from infliction:
* Bathory Card causes the skill inflicting this status to miss.
* Evil Druid Card causes the skill inflicting this status to miss.
To assist in recovering from this ailment:
* Relogging cancels the status.
The skill doesnt remove the buffs, and you can cast them normally on a person cursed (not sure what happens with bless, but agi up works fine).
Bathory card doesnt cancel the effect. Undead armor doesnt cancel the effect (you still become undead even if your armor is already undead).
Source:
http://www.irowiki.org/wiki/Status_Effects#UndeadBug also on latest trunk.