BW Blink with Ketramose

Ok so are there an ideas or lists to update the BW Blink Arche-Type

https://www.mtggoldfish.com/archetype/modern-orzhov-midrange#paper

What do you cut for Ketramose, the new Dawn? I would play 4 because its such a powerfull draw engine and you can pitch multiples to Solitude. Is it worth to play Relic of Progentius or do you want Rest in Peace main? But than it makes your Overlords bad, what do you guys think, how to build the deck?