Amulet Titan's key enablers are mostly lands and Amulet of Vigor (an artifact at MV1), so a small Meltdown for X=1 can strip their bounce-land acceleration engine before it goes online, though much of their ramp (Selesnya Sanctuary, Simic Growth Chamber, Urza's Saga as an enchantment land) is untouched by it. This matchup is a pure race — Amulet Titan is trying to assemble Primeval Titan into Scapeshift or a big mana turn while we apply maximum early pressure, so keep the curve as low and aggressive as possible. Nihil Spellbomb has minimal impact since their deck isn't graveyard-reliant; only bring it in for the marginal artifact-graveyard interaction with Aftermath Analyst's mill. Prioritize speed over interaction — every turn spent not attacking is a turn closer to them assembling Amulet of Vigor plus a bounce land into an explosive turn.