What does Shadowheart's Trickery Domain bring to the game?

I'm level 6 (half way to 7) have down the gith creche and have just the Grym Forge area of the Underdark to do before moving on.

Shadders is mostly using a Xbow with her flail as backup if enemies get too close. I leave her spells for the more problematic fights (bosses and mini-bosses). I have her stats respecced to be how I would build a cleric so she hits things and does a decent amount of damage with her weapons. The lack of a second attack is a pain but as far as I can see none of the Larian cleric domains have a real second attack (I don't see why War domain shouldn't have one, 5e or no).

Unless I'm missing something about Trickery I'm thinking about either respeccing her as a different domain, multi-classing her or just rebuilding her as a pally or something.

Info and suggestions welcome. The rest of the party is Bard, Lae'zel and Karlach.