As someone who plays leblanc I am pretty sure its longer than 1.5, but I haven't checked. Always felt like 2.
her mark got a 1,5 sec before mark is active ohhh such a nerf but then boom W on it and 250 magic dmg
If you let her w to you and hit her q, I don't know what to tell you except to play better? Also her w is on an almost 20 second cd. She literally just got nerfed good bye shit poster
at lvl 2 such empowered mark and how she can now W and then let the Q spread even more is honestly no rework no nerf but a clean unnecessary buff