Each hero has a few "Hero Gear" items available to them, such as Ingrid's axe or Frodi's staff. These are indestructible and always return to the hero. See the page for the respective hero for more information on this gear.
Heroes can use other weapons as well, such as weapons dropped by enemies. Some of these weapons may have special status properties, such as extra damage from lightning, fire, poison, freezing, or something else.
Weapons picked up from NPC's degrade with use.