Jeskai Control wants to grind with Jeskai Revelation, Tablet of Discovery, and Great Hall of the Biblioplex, so Negate is well-placed to counter their key noncreature spells before they generate value. Krang, Master Mind becomes very cheap in your artifact-dense deck and provides a resilient late-game threat and card advantage to fight through their removal-light, counter-light plan. Braided Net and Candy Trail are too passive to meaningfully pressure a control deck that will out-card-advantage you if given time. Keep your full artifact engine online since Jeskai Control has few ways to interact with your permanents beyond Day of Judgment.