Jeskai Control wants to Day of Judgment or Jeskai Revelation us off the board, so Duress proactively strips a sweeper or piece of countermagic before we overextend into it. Gollum the Abandoned is a recursive, low-cost threat that keeps coming back after a wrath and can rebuild pressure on its own using sacrifice fodder. Dissection Practice is too small to matter against their card-advantage plan, and Dark Knight's Greatsword lines up poorly against sweepers like Day of Judgment, so we cut both for resilience and disruption.