Mono-Blue Faeries is entirely blue with Counterspell, Spellstutter Sprite, and Ninja of the Deep Hours as its core, so Red Elemental Blast and Pyroblast are premium, countering their key interaction or removing a resolved Faerie threat. These let us play around their two-mana Counterspell and their evasive flying clock. Cut Goblin Tomb Raider, which trades poorly against their flying Faeries and doesn't pressure them enough, and trim the extra Chain Lightnings for more targeted disruption. Our best plan is applying fast pressure before their Ninjutsu and card-draw engines (Of One Mind, Moon-Circuit Hacker) take over the game.