Esper Control is full of countermagic (Force of Negation, Spell Snare), spell-lock effects (Silence, Orim's Chant) and sweepers (Supreme Verdict, Wrath of the Skies), along with Solitude and Teferi, Time Raveler disrupting your plan. Veil of Summer makes your spells uncounterable for the turn no matter what they've cast, and it gives you and your permanents hexproof from blue and black, which matters against their blue interaction like Sink into Stupor. It also draws a card if they've cast a blue or black spell that turn, though it does not stop Silence or Orim's Chant. Consign to Memory can counter colorless spells like Isochron Scepter or any triggered ability, such as Solitude's enters trigger, offering useful interaction, though its main value is flexible disruption against their value engines. Cut Galvanic Discharge since it is narrow in this matchup, with few creatures to kill beyond Solitude, and cut High Noon since its one-spell-per-turn limit is symmetrical and cramps your own sequencing, while they have answers like Prismatic Ending and March of Otherworldly Light. Your Indomitable Creativity remains a strong top-end payoff, using your own tokens and creatures as targets.