Etrata, the Silencer: This is our win-con. It is a 4 3/5 legendary which means it survives or dodges stuff like Lightning Strike, Cast Down and Ritual of Soot. It has unblockable which means our opponent has limited answers to an attack. It deals with a creature as it attacks, which is great, but it is an even trade since you have to move her from the battlefield as well. The difference is that if you do this 3 times, you just win the game, no strings attached.
Lazav, the Multifarious: This card is here for 1 reason. It allows you to make more copies of Etrata, the Silencer. More copies mean better chances of winning the game.
Helm of the Host: This card is here for the same reason as Lazav, the Multifarious, and that is to increase the amount of Etrata, the Silencer we have. What is nice about this card is it strips the copies of the legendary title, which means you can have as many as you want. you can keep them up as blockers, and then once you have 3 you just go for the win.
Blink of an Eye: This card has a duel purpose, with a potential third purpose. Firstly, it bounces Etrata, the Silencer back to our hand, which allows us to have immediate access to another copy. Secondly it allows us to limit the size of our opponent's board by bouncing their creatures back to hand. This is actually better than killing them, since we need those creatures as targets for card:Etrata, the multifarious, so we dont want them dead. Finally we can kick it later on for card advantage. This bad-boy is also not limited to creatures, so we can deal enchantments, artifacts and plainswalkers too!
Unexplained Disappearance: This card does the same as Blink of an Eye, which is bouncing Etrata, the Silencer to power up our win-con, and slowing our opponents down by bouncing their creatures. The difference is that we get to surveil 1 immidiately. No strings attached. It is limited to creatures though.
Dream Eater: This card does exactly what we want it to do. It surveils a ton, so we can find the win-cons. It bounces a permanent upon entrance, which is great, and this also makes a great target for Helm of the Host.
Disinformation Campaign: This allows us to weaken our opponent's hand while strengthening ours. It is slow in doing this, but a 2 card swing a turn is nothing to laugh at. This ensures a great draw phase. One thing to mention is that once our opponent is in topdeck mode, bouncing a creature before you play this basically acts as a killspell. This helps against nasty enter the battlefield mechanics we may not want to see again.
Thought Erasure: This scouts our opponents hand and deals with the biggest threat. it also surveils so that we can replay Disinformation Campaign or at the very least get 1 card closer to finding out win-con.
Discovery / Dispersal: This card can surveil and draw, which makes it a really good card for finding our win-cons. Later on it also adds to the while bounce/discard theme we got going on. Once they are topdecking, this is basically a kill-spell.
Golden Demise: This deals with wide boards of tokens, while not touching our creatures at all. I chose this above Ritual of Soot as Ritual of Soot kills Lazav, the Multifarious as well. This one avoids to do that as long as Lazav, the Multifarious is a copy of something.
Moment of Craving: This card deals with small creatures while giving us a bit of life. Something this deck can run into is lifepoint problems agaisnt fast decks, especially red aggro. This card not only deals with a creature but also heals back up whatever damage the creature dealt. at the very least you can negate the damage from a 4/4 by reducing their attack to 2, and then healing 2 more, leaving their attack to deal no damage.