Affinity's Kappa Cannoneer grows out of removal range quickly and gets ward 4, so Pithing Needle naming it shuts off nothing (it has no activated ability listed), but naming Urza's Saga's chapter II construct-making ability denies them a key blocker/attacker and mana sink. Solitude is efficient, free removal for Pinnacle Emissary or an early Kappa Cannoneer before it grows. This is a mirror-ish artifact grind where both decks race with Urza's Saga and Mox Opal, so keep the full equipment suite and only trim marginal value pieces like Forge Anew and Shadowspear. Be aware their Metallic Rebuke and Consign to Memory can disrupt our noncreature spells, so sequence equipment plays carefully.