Lida's Apprentice prevents your cards from being silencedError, the 'silenced' keyword is not in the database. Check spelling. by all effects, including your own. Combining her with Ayan, the Abductor will let you return your units from the void with their abilities intact.
This was the first card revealed as a Fall of Argenport spoiler. An image wasn't revealed, but its name, cost, stats and text were detailed. This pre-release version only protected your other units from being silenced, rather than all your cards.