Consign to Memory is excellent here since it has Replicate and can counter multiple triggered abilities in one cast, letting you stop a time counter from being removed from a suspended Living End or shut down Endurance/Subtlety evoke ETBs, while also hitting colorless spells like Engineered Explosives if needed. Tormod's Crypt is actually very effective against Living End: activating it in response to the Living End trigger exiles their graveyard before the spell resolves, leaving no creature cards for them to put onto the battlefield. Blood Moon is a strong one-of that shuts off their Misty Rainforest-based fixing and taplands, punishing their five-color manabase. Mystical Dispute is a cheap, efficient counter for their many blue spells (Subtlety, Force of Negation, Mystical Dispute), though it can't touch Colossal Skyturtle's channel ability since that's an activated ability, not a spell. Welding Jar comes out since it protects artifacts from destruction, which isn't a major axis of interaction Living End uses against us.