Esper Control is a countermagic- and Wrath-heavy matchup where our clock matters more than individual creature pumps, since Supreme Verdict and Wrath of the Skies can wipe pumped creatures away anyway. Consign to Memory only counters triggered abilities and colorless spells, so its main job is answering Solitude's enter-the-battlefield exile trigger (even when Solitude is evoked) and the occasional Isochron Scepter, which is a colorless spell. Spell Snare is a precise answer to their spells with mana value 2, such as an unkicked Consult the Star Charts, Isochron Scepter, and Prismatic Ending or March of Otherworldly Light cast with X=1. Narset and Teferi both have mana value 3, so Spell Snare can't hit them. Mutagenic Growth and a Mishra's Bauble are cut since this matchup is decided by resolving threats through interaction rather than combat tricks, and card selection value drops once the game goes long.