Monster Drop information

General Monsters

The drop rate of Booty/Questies is slightly increased compared to Flyff PC.
Captains will drop more Questies than Normal monsters, which will drop more Questies than Small monsters.
General monsters can drop only Power Dice 4, 6, and 8.
General monsters can drop Fruit Punch and Gratin.
General monsters will not drop Unique Weapons anymore. (Same as version 9 onwards.)

All monsters in dungeons have a higher chance to drop Power Dice than general monsters.
They can also drop Power Dice 10 and 12.

Only flying monsters can drop Plug Earrings. They also have a higher chance to drop Demol Earrings than general monsters.

Giants are guaranteed to drop at least 1 common/uncommon weapon or piece of armor.
Note about guaranteed drops: they are still subject to drop probability reduction if your level is higher than the monster (10% if you are 9 levels or more than the monster). Treasure Hunter and other buffs will not make them drop twice or more.
Giants have a chance to drop Power Dice 10 and 12.
Giants have a higher chance to drop an element card matching their element.
Giants have a higher chance than general monsters to drop Rare Weapons, pieces of Rare Armour, and Jewelry.
Giants will drop several Questies and consumables.
Only giants and bosses can drop Unique Weapons.
Each Giant has a slight variance in chance (a few percentages) to drop a specific kind of Unique Weapon (Sword, Axe, Stick, Knuckle, etc.). For example, one Giant will have a slightly better chance of dropping a Sword while another might have a slightly better chance of dropping a Staff.

Clockworks will always drop 1 piece of Jewelry between Mighteer+1, Penzeru+1, Strente+1, Intiret+1, and Dexion+1. There is a chance to drop a second one of these +1 Jewelries.
Clockworks has a small chance to drop 1 of its rare Jewelries which are Strente+2/3, Dexion+2/3, Intiret+2/3, Mighteer+2/3, Penzeru+2/3, and Speedo+1/2/3.
Clockworks has a high chance to drop Clockworks Weapons and pieces of Clockworks Armour.

These Bosses will drop many Questies, consumables and common/uncommon Weapons and pieces of Armour.
They have a high chance to drop upgrading materials, including Power Dice 10 and 12.
They are the monsters with the highest chance to drop several Rare Weapons and pieces of Rare Armour.
Iblis Leanes can drop Weapons of Iblis.
Meteonyker can drop Legendary Golden Weapons.