The decklist contains several ways to make copies of your legendary creatures hang around when they should disappear
Cruella de Vil, Fashionable Cruisier is your only real counter, but Launch can be used in a pinch too
Favorites include Dreamscape Artist, Diplomatic Escort, Jaya Ballard, Psychic Frog, Skirge Familiar to add mana, Stronghold Biologist and Machinist to counter creature/noncreature spells, but my two all-stars would be Chamber of Manipulation and Overtaker, turning your land cards into creature-stealing effects for fun and profit
83% Smugglers Copter, thoughmaybe it is time to panic
Learn how to play with your own deck, easy-to-follow rules, strategy tips, and reference card 100 CARD WHITE-BLUE DECK: With the First Flight deck, take wing with the sphinx Isperia, Supreme Judge, and overwhelm foes with a squadron of flying friends FOIL-ETCHED LEGENDARY CREATURE CARD: Includes 1 legendary creature card with gorgeous art and a foil-etched treatment
Unfortunately, this is relegated to Limited or low-level play, or if you really need to add an LD effect to an artifact toolbox
