User blog comment:ChaseKing/Counter for Leblanc finally found???/@comment-1920550-20150605133703

Morgana and Cho'Gath are top LeBlanc counters.

Morgana's Black Shield negates a portion of her burst and her chain CC. Bouns points if you build an Abyssal's/Athenes. If Morg lands a Dark Binding, LeBlanc is just dead. If not, Morg can just use Tormented Soil to push the waves and keep LeBlanc on her turret.

Cho'Gath is just too tanky to assassinate. If LeBlanc tries to use Distortion on Cho, he'll silence her, then burst her down with a Q-R combo. LeBlanc simply can't do jack in lane against him.