The most effective core build for Leblanc Mid consists of Luden's Echo, Shadowflame, and Rabadon's Deathcap, which holds a 57.1% win rate. Another viable option is building Luden's Echo, Zhonya's Hourglass, and Shadowflame, resulting in a 51.2% win rate. You should almost always pair these with Sorcerer's Shoes, as they are chosen in 90.2% of games.