Full tank Lissandra... Is it actually a thing?
I have been playing around with Lissandra and her abilities, and while she doesn't have any innate tankiness, she has the kit of an initiating tank... Her gap-closer is better than most in initiating in that you have full control of where you will land, with a long distance. If you wanted, you could go behind the enemy group or right in the middle... You could even choose not to go in at all and bait out different abilities. Also, Lissandra has an AOE hard CC on a reasonable CD, as well as a multi-use ult that can be used either on herself to make her invulnerable and heal, or on an enemy to stun them, both of which doing large amounts of AOE damage, as well as slowing.
However, my worry is whether one can build her tanky enough early enough to initiate fights at midgame. Also, I do not quite know what the best route for tankiness is for her (other than the obvious spirit visage for her ult)...


just as an example.
etc... would make her, but it offers a lot more of what she wants.
(building Zhonya's or Abyssal early/late depending on what you need to mitigate).