Trinket can be equipped to extraslot (offhand) only, requires a mastery to use it. Grants innate bonus for skill resource pool (like Energy). Prefixes: caster bonuses, resists, skill damage and some other stuff. Something like a souvenir on the belt near at hand.
Not a weapon, attack is an unarmed fist, with all relevant bonuses for extraslots, or you can use it for a Fist Fight perk.
Archetypes can wear it: Brawlers (STR), Tricksters (DEX+INT), Guardians (STR+INT) and Specialists (STR+DEX+INT).
Archetypes can't: Warriors (STR+DEX), Rangers (DEX) and Scholars (INT). (They think it's cringe).

What it can be used for?
-This is an alternative offhand equipment for Guardians and Brawlers, who can't or won't use shields.
-Can be used for caster builds of Tricksters and some others.
-Works for Fist Fight, this is why this perk is available for more archetypes now.
-Decent option for heavy weapon users (if didn't get Titan's Grip), the other slot will almost always be on cooldown anyway, at least you'll get some bonuses not available for shields.
-For petmancers there can be a pet power bonus, the only source of that bonus for extraslot.
-For more, there is can be an Exp bonus, also unique for the slot.

Archtower has started Early Access!
https://store.steampowered.com/app/1837690/Archtower/

You also can play Demo and add it to Wishlist!