Taliyah is a Faliure
She had way more potential.
Q gives a debuff.... for god knows why.
W is too slow to proc and easily dodgable.
E is pretty alright
R The Jumpoff mechanic is pretty meh.
This is what i would do.
If you are insistant on Creating a Debuff on her Q then atleaste make the initial Q Do more damage early, And make her Worked Ground Q do the amount of damage of atleaste 3 Qs. right now it isnt even a good idea to use worked ground to Q.
W Make it Wider. and or Faster.