INTRODUCTION

Greetings,
We're here to discuss LeBlanc's viability as a support so let's get to it.

Laning Phase
Your role in the laning phase is simple, ward, harass, let your adc farm, and don't die.
I mean, you can die if that results into saving your adc but only then you're allowed to die.

Mid Game
Ward more crucial spots like Dragon and Baron, ward buffs (if your jungler is too ignorant to do that himself), start counter-warding withand never never never NEVER forget that you cannot rely only on 's Wards, so always buy extra .

Mid-Late Game Fights
Your main role in 5v5 fights is to stay near your adc, provide him speed with, slow down them bruisers with and use your to slow down + stop up to 2 targets.
You can pretty much protect your adc from any kind of threat since you have

1.Movement Speed Buff
2.Enemy Slow Debuff
3.Up to 2 target slow>snare
4.Up to 2 target silence

I do not think this guide needs further explanation, let me know what your opinion is about this guide by leaving a comment here or e-mailing me at eleox@hotmail.com, I'm also open to any suggestions.
Thanks for your time,
SoD GoDLiKe