So for the Weaver and the Catalyst the Weave Keyword means you need to roll using your Weave stat instead of Hammer of Scythe when making attacks.
The Arcane tag means Attacks that are rolled using the Weave stat Deal +1 Harm.
And thank you so much. If you do post them feel free to post a link here, I'm not active on FB but would like to see them. I'm glad you're enjoying the game!