Grades

Done

The info on monster dropped grades is incomplete. It only explains items with durability increases of +1~8, but there are weapons with more than that(like the Crystal Lightning and Crown Ice wands dropped by Balrog and Neid with +7~10).

The grade of special durability drops is determined by their alternative stat boosts, not their durability. For example, the desert dragon drops several base grade items with 20 durability.

Isn't that denoted as "Weapon Name (X Durability)?"

Yes and no. For standard monster drops the durability is semi-linked to the stat boosts, but Field bosses have their own special drop table.