Sorry for the backlash this guide has given you- Let me offer you some help if you're still willing to try and change up the guide:

There are three types of roles that supports fill: Poker, Sustainer, or All-in.
Pokers, like Lulu, zone and deal damage over time.
Sustainers, like Soraka, render pokers less effective so the carry can keep up their farming.
All-in champions will rush in and hold a target down for their carry, like Leona.

Some support champions fill multiple roles, like Taric being part sustain and all-in, or Sona being poke and sustain. When I look at Lissandra, I see no sustain potential just because of the nature of her skills, so we can cross that off the list. She has two pokes with Ice Shard and Glacial Path, ad a snare with her Frozen Tomb. I'd say that a support Lissandra should act like a poke champion with all-in potential, sort of like how Thresh is all about going all-in with a little poke potential with his Flay passive and auto-attack range.

Because of her poke nature, more poke-centered items should be bought to start the game. Spellthief's Edge is great because it gives us everything pokers need- ap, magic regen, and gold per poke. She'll want to zone as much as she can, so also get a Stealth Ward for the river bush, or the lane bushes.

Avoid taking CS from your ADC- your goal should be to let them get as much gold as possible before the enemy ADC does, so both of you can dive in and get some kills later in the game with that item advantage. Don't get Ring of Frost early because it has the chance to steal CS- instead, maybe an Ice Shard and try to zone the enemy team away from the creep line. Once there is nothing between you and them, start pushing them back even more with those skillshots! If its time to get a kill, use Glacial Path into Ring of Frost and Frozen Tomb!

I'd suggest going 9/0/21 with masteries in order to pick up 10% CDR right off the bat, some AP, and the increased gold income so you can build a Sightstone and AP items ASAP. For runes, get some early-game AP red runes, armor and magic resist to mitigate some counter-harassment, and maybe some gold per level quints to speed up those early-game items.

Also, when writing a guide, don't sell yourself short. If you feel confident enough to write a guide, then go ahead and make sure we feel that in your writing. I don't want to write too much here, but if you do like my suggestions, send me a message and we can chat more!

The items are kind of bad, and you should never leave out Flash in your summoner spell kit.
Every role needs it.

I highly recommend you just start a new guide from scratch, after reviewing other guides of supports and playing a lot of games of League. I don't mean to insult you in any way, being new is something everyone goes through! However, it's very evident that you have very little experience playing supports, or League in general. Go practice! It's the best way to get more knowledge about how the game works, and what items are good for your champion(s).

I downvoted because this guide would be terrible for an inexperienced player to see. It would give them all the wrong ideas and do them a disservice. You shouldn't write a guide if you don't have the experience to know why you should pick certain items.

I"m working on it, trying a few new things. will update when i can

Cheat sheet is still completely wrong

That Frozen Mallet... You're a support, you're not AD and you already have a lot of CC.
WHY Quint of Exp? You need to have armor and mr runes

Though i wish you were a little more respectful, i appreciate your honesty, and you are the first comment that actually talked about what needed fixed. I have updated the guide and have tried some new items builds. THank you for actually giving some constructive critisism

Not sure if trolling or just stupid. Frozen mallet?? And Crystal Scepter??? Almost all of your moves are CC and by the time that runs out your procs will be gone... I've been seeing too many of these guides that done realize that lissandra is all CC. If you dont realize that how can you make a guide for a champion you dont know anything about?

Well obviously Frozen Mallet is legit because she's an ice witch.

I know guide-making is fun and all but this guide is full of poor advice, confusing questions without answers, and items that have no business being on Lissandra in any role.

This.

If you don't know what you're doing, I suggest you refrain from writing a guide. It's not going to be very well received, because you will usually be wrong.

I can tell from your cheatsheet that you don't know the first thing about support, or even LoL for that matter.

Your runes are incorrect in every way, your skill sequence is questionable, masteries are outright wrong and your items are absolutely random.

My suggestion would be to archive this 'guide' and to learn how to actually play support before you actually judge yourself to be a good support (which you're not, clearly). If you want the first hint of why you're a bad support, your start is absurd. 0 sight ward start and you attempt to buy 5 potions to go with your boots, which is a bad buy on its own anyway.