4c Artifacts is a grindy artifact-value deck built around Simulacrum Synthesizer, Repurposing Bay and Pinnacle Starcage, backed by targeted removal like Perilous Snare, White Auracite and Erode. Surrak, Elusive Hunter can't be countered, which matters against the Negate and No More Lies they can bring in after sideboarding. It tramples through their Construct tokens and artifact creatures, and it draws you a card whenever they target it with a spell or ability. Shared Roots is cut since the matchup favors proactive, resilient pressure over slow ramp against a deck that can eventually assemble Pinnacle Starcage or Day of Judgment. Be aware Pinnacle Starcage can exile your cheap permanents like Llanowar Elves and Sazh's Chocobo, so sequence your low-cost threats carefully.