mtg exile cards from the top of your library until Zhulodok, Void Gorger (Commander Masters) Aurora Phoenix [Commander Legends]

We just got a new Sanguine Bond effect in Duskmourn with Enduring Tenacity, which handily curves right into Conqueror in Mono-Black

The layout updates in real time

we can use it to reset Jeleva if weve cast all the spells it exiled

Once Brotherhood Spy's ability has resolved, removing the legendary Assassin (or Assassins) you control from the battlefield or causing them to lose the legendary supertype or Assassin subtype won't cause Brotherhood Spy's ability to stop applying for that turn

The red ability to give Creatures Trample and Haste isnt as relevant here as youre not aiming to overrun the opponent, but rather out value him/her