A Usable is a type of arsenal item that has a one-time use. The results can be permanent or temporary, depending on the usable.
After obtaining a usable it must be activated from the player's arsenal. Different usables have different activation commands.
Activating a usable grants temporary or lasting effects, depending on the usable. Certain usables, most notably boxes, contain one or more items.
For a compressed list of all Usables, see Category:Usables.
Trinket Slot Upgrade
Trinkets are a type of gear that bestow a variety of small, but useful benefits to your knight. Any player can acquire trinkets, but in order to equip them, trinket slots must be unlocked with an upgrade. Up to two Trinket Slot Upgrades may be activated at a time. Each one will unlock a single trinket slot for 30 calendar days. An activated slot upgrade will remain visible in your arsenal with the expiration date and time showing in the mouseover tooltip.
Trinket Slot upgrades cost 150 Energy each from the Supply Depot.
Weapon Slot Upgrade
By default, players are only able to equip two weapons when they descend into the Clockworks. This limit can be increased up to four weapons by purchasing and using Weapon Slot Upgrades. Up to two Weapon Slot Upgrades may be activated at a time. Each one enables an additional weapon slot for 30 calendar days. An activated slot upgrade will have a yellow background and remain visible in your arsenal with the expiration date and time showing in the mouseover tooltip. If you have both an activated and unused slot upgrade in your arsenal, you can click on the activated slot upgrade and use the unused slot to extend the expiration date by 30 days.
Weapon Slot upgrades cost 250 Energy each from the Supply Depot.
Krogmo Coin Booster
Krogmo Coin Boosters cost 300 Energy each from the Supply Depot.
This upgrade doubles the user's heat gain for 2 days, 7 days, or 30 days.
Heat Amplifiers for 2 days, 7 days, and 30 days cost 800, 1600, and 5000 Energy, respectively, from the Supply Depot.
Lockboxes contain many different aesthetics. They require a Silver Key to be opened (they are "locked").
Gift Boxes are items that can be used to wrap up an item or a stack of an item.
All Pods require completion of Rank 3-2 Mission 'An Eternal Bond' to use.
Eyes change the eye shape of the player's knight when used.
Height Modifiers change the height of the player's knight when used.
Personal Colors change the color of prismatic aspects of the player's knight when used.
Name Change Passes are single-use ticket-like items that change important names, such as your knight's name or your guild's name.