03-30-2023, 10:11 PM
While it's possible to make event items drop only from selected monsters that are set in t_drop_item_head.a_npc, I believe it's not possible to exclude only specific mobs without changes to the code.
You could hardcode a check for specific npcs for your specific _pDrop (for example) in
CDropManager::checkCondition(CPC* _pPC, CNPC* _pNPC, CDropInfo* _pDrop)
(i think drop index 1 is used for easter event)

