It protects against removal, re-triggers enters and leaves the battlefield effects, and can easily form the basis of a whole Commander deck if you lean hard into the concept
For eight mana, we can cast Startled Awake and use Mirrorpool to copy it, milling a total of 26, which is almost always enough to get our opponent's library empty
I swapped two Overload for a Rorix and a Tranquil Domain in the sideboard because the Stiflenoughts plan of Parallax Tide means theyre no longer all-in on Phyrexian Dreadnought and I felt that I had enough artifact destruction already
Finally, on May 5, the Crown Zenith Premium Figure Collection which has five booster packs, an etched promo card with Shiny Zacian V or Shiny Zamazenta V, a corresponding Shiny figure, a Shiny pin, and a set of card sleeves hits shelves
So, is Mew ex worth experimenting with