Can a raging barbarian activate an item imbued with a spell by an Artificer?

Can the Artificer mechanical servant use items/weapons/armor?

Does the damages dealt by the Alchemists concoctions adds any modifier?

What is the alternate starting wealth for the UA Artificer?

What would the weight of the Thunder Cannon be?

Artificer and Mystic becoming AL legal via DM’s Guild at one point… Any timeline that you can share?