Not an item
Loki's Veil [Ensemble Skill] (Skill ID# 311, iRO Name: Classical Pluck)
311,0,6,4,0,0x1,0,1,1,no,0,0x40,0,misc,0, BD_ROKISWEIL,Classical Pluck
Could be set in skill_db:
311,0,6,4,0,0x1,0,1,1,no,0,0x40,0,misc,0, BD_ROKISWEIL,Classical Pluck
or
It could be set in skill_unit_db
// ID,unit ID,unit ID 2,layout,range,interval,target,flag
311,0xa3, , 4, 0, -1,all, 0x200 //BD_ROKISWEIL
If it's not those files.. then I would say it's in source =/