Silence is pretty much out of meta and even if so it is mostly a 1 for 1. Passage of Eons is not very effective as we dont play relics and most of your units are probably in the void at any time.
The only problem is Steward of the Past silencing all units in or void but I cant recall the day I last saw him being played, and we do have varas choice to test the water after opp user merchant.