Esper GenericBlink relies heavily on nonbasic lands and blink value creatures like Phelia and Flickerwisp, so Harbinger of the Seas turning their nonbasics into Islands can strand their white/black mana for Solitude, Overlord of the Balemurk, and Ephemerate. Engineered Explosives sweeps their cheap value creatures (Phelia, Emperor of Bones, Orcish Bowmasters) at low charge counters, and Mystical Dispute is live since they run blue spells like Kaito and Teferi, Time Raveler. Spell Snare loses some targets since their curve includes 1-drops, Solitude evokes, and higher-cost threats alongside 2-drops like Phelia, so trim it along with Sink into Stupor which is weak against their resilient blink engine; cut one Preordain for interaction. Keep Thoughtseize and Fatal Push as premium disruption against their key blink pieces and removal.