W/U Ghostly Flicker

In the Moorlands of Innistrad, a thick fog covers the whole island. This dense shroud spawns spirits of all shapes and manners. If you breath the stuff long enough, you start to doubt the solidity of your own corporeal form.

This archetype is about "Flickering" cards you control, have them leave and reenter the battle field. This way you can reuse their enter the battlefield effects over and over again, leading to quite a bit of value.

You'll want to look for flicker cards such as Soulherder, Ghostly Flicker, and Flickerwisp. After that you'll also want to find things to flicker. Mostly creatures, such as Mist Raven or Geist-Honored Monk, but there's value in all cards, even lands, such as Mystic Sanctuary

The Deck leans into tempo, meaning you will want to hinder their Game Plan, while advancing your own. Flickering can beat removal spells, bounce can be used on your creatures or the opponents! It's all about finding the pockets of synergy in this deck and counter attacking!

Life and Death ETBs

Adding Black allows for more enter the battlefield effects to control the game such as Ravenous Chupacabra. It also gives a new way to rebuy those effects by replaying creatures from the grave. All Hallow's Eve will bring a whole team back, while Blood for Bones can pull double duty on sacrifice triggers and two ETB effects.