Sunder:

Character may attempt to strike at an item
To do so, they choose a basic attack or any technique they can execute as long as:
-	that ability is an attack (targets resistances or touch)
-	this ability has or can have a single target
-	this ability deals damage
They roll vs. target item's resistance (no matter which of the resistances the attack targets)
Upon success, they can attempt to deal damage to the item and cause Tear damage to the item
Provokes Attack of Opportunity

Attacking an item

To damage or destroy an item, a Sunder maneuver has to be used. Each item has a single resistance, which is used no matter which way of attacking it is chosen. It's always dependant on item grade:

E: 10
D: 14
C: 25
B: 40
A: 75

Items do not have HP pools and do not suffer damage normally. Instead, each attack is checked against item's particular Durability. Durability is dependant on IQM and on item type, as follows:

Weapons: 5+IQM
2-handed Weapons: 10+IQM
Inventories: 15+IQM
Lighthouses/Observers: 12+IQM
Reels/Wands: IQM
All non-mentioned: 5+IQM

Moreover, all items have innate 50% damage reduction against Shinsoo and/or Ranged attacks

If the attack deals damage and fails to exceed the Durability, nothing happens. If it does, deal a single instance of Tear damage. Tear damage is used to track amount of wear on the item; When the item accumulates [Item tier -1] Tear damage, it's tier is reduced to 1 until repaired - it is now unusable.