Trinket refers to a type of armor worn in the trinket equipment slot. Trinkets are also called devices, gadgets and other references.
Trinkets are itemized unlike any other type of armor. Whereas most high level armor will give moderate bonuses to four or five of the seven or eight stats useful to your particular class, a trinket will generally provide very large bonuses to just two stats. Typically, one bonus will be a flat always-on bonus, and the other will either be a use effect (that you must activate) or a proc (which will occasionally activate whenever you attack or are hit).
In a PvP context, "to trinket" refers to using a PvP trinket.
A character can have up to 2 of these items equipped at a time.
Virtually no trinkets are available before about level 50. Exceptions include PvP trinkets and heirlooms, as well as some BoP crafted items.
With rare exceptions, trinkets are obtained as quest rewards, as boss drops, through your professions, as PvP rewards or by purchasing with emblems. They are almost never available on the Auction House.
Engineers can make several different kinds of trinkets, but most can only be used by other engineers.
Trinkets are normally taken into very different consideration than weapons and armor, as very few have actual stats on them. Instead, they often carry passive effects or can be used to produce a unique effect for a brief period with a cooldown between uses. Trinkets are often very situational, and a good player will often carry around many of them.
After equipping a trinket, there is a 30-second delay before it can be used and any passive effect will start after the hidden internal cooldown, if any.
Using a trinket often activates a shared cooldown on trinkets with similar effects.
After reviewing the data and player feedback, we remain concerned that on-demand burst damage remains too high in PvP. After investigation, we determined that the on-use PvP trinkets are a major contributor to extremely high burst output. As a consequence, in the near future we will be applying hotfixes to smooth out the damage provided by these PvP trinkets. In the case of the Gladiator's Badges this means cutting the amount of primary stat or PvP Power provided, but also cutting their cooldown in half. For the Kor'kron and SI:7 manuals, the cooldown of those trinkets will remain unchanged, but the amount of stats provided will be reduced and the duration of the buff will be increased. The overall damage provided by these trinkets should not be affected; only the burst they are capable of providing.
For example: The Dreadful Gladiator’s Badge of Victory will shortly provide 2553 Strength once every minute, instead of 5105 Strength every 2 minutes. Please note that due to limitations in hotfix technology, the item tooltips and buffs will still incorrectly display the original stat value of 5105.
These are the trinkets that are currently slated for adjustment:
We are aware of the possibility that certain PvE trinkets could become more attractive for PvP in the wake of these hotfixes. While that is somewhat unlikely given that adopting those items would represent a significant loss of PvP Power and Resilience, we will nonetheless keep a close eye on the situation and make adjustments to the appropriate items if necessary. It is also possible that it could become too difficult to land reasonably consistent kills in PvP. If that proves to be the case, then we currently plan to increase the effects of the Battle Fatigue healing debuff to compensate, which is an adjustment that we’ve been considering for some time. On the other hand, if burst damage remains too high after these changes, we are prepared to take additional steps as needed.