The guide has gone 80 days without an update and you need feedback? Go over all the patches since then and update any parts that changed.

Telling people to smartcast by holding down shift is downright dumb. You should explain how to reassign your skills to smartcast instead of ordinary cast on the default QWERDF keys instead of telling them to hold shift.

All of the numbers automatically input into the skills section need to be corrected. The numbers listed were her stats on release; SoloMid doesn't keep them up-to-date.

The "Sources of Damage" chapter is incredibly redundant and should be scrapped entirely. There's a difference between reaffirming a statement for emphasis and just repeating yourself. The skill descriptions should go into the skills chapter, the (one) item in the item chapter, etc.

Early, mid and late game chapters are perfect, really surprisingly well done. I only ask why there isn't more on teamfights in the Late Game chapter, and only in Mid Game.

I feel like some of the Item Builds chapter wasn't explained. Saying something is situational doesn't explain what kind of situation you should take it in or why it is even good in the first place. The formatting could also use a little help, too, but it's mostly fine.

Under the two "Counter" chapters (misnomer, should be called Lane Matchups Overview) you don't explain anything about the lanes that make them easy or hard. I recommend you maintain the current format but under the row of icons, list vertically small icons those same champions above, and explain something about them, like a trick to beating them or what you can do to survive in the lane longer. Example:

[title]Hard Lanes[/title]
[champ_icon_large1][champ_icon_large2][champ_icon_large3]
[champ_icon_small1] description.
[champ_icon_small2] desc.
[champ_icon_small3] desc.

You see? This would give insight on the hows and whys, which people need to know.

For the Video chapters, why are they seperated into two sections? You should combine them, and how about a video of a complete game?

And one final note on the actual content choices: isn't it far more effective to max E first, rather than Q?

Well I am about to look into it, someone said it heals for the full 15% but that doesn't cope with my personal observations. The Rylais part however is as described.

WHY [items/hextech-revolver.png] 5% effective spellvamp per target. Do u only get 5% effective spellvamp and 15% rylais slow with twin fang?!! does riot intentionally count it as an aoe or is it a bug?

I would say that maxing Twin Fang is much better than Noxious Blast. It's best because your opponent greatly underestimates your damage output until you attack. I would also say that getting Will of the Ancients is almost a core build. It makes you surprisingly resilient when fighting. I play Cassio very aggressively. However, I almost always require 1 or 2 tanks to hide behind during mid and late game.

In team battles, I've found 2 strategies to work well. One is to wait for the Ult after an initiate in order to get as many as possible. The other is to flash and ult as an initiate. I know that's very risky, but I will do this when the Carry (AP/AD) over extends in a pre-team battle. I'm almost guaranteed 1 or 2 kills this way and it's almost never expected.

One bad thing is that I usually require blue to sustain, but with the CD and mana regen, I will almost always dominate. The first blue goes to my jungle, but the rest I usually take from him. Great guide though.

I dont agree with the seals, hp/lvl or ap/lvl 10x better.

@Kowe: Thanks for the advice, I will look into it.

@oMnival:

I dont see a point in picking them up to be honest. Sorc Boots and 10-15 AP via runes give you an incredible boost for little effort. Cass has no gapcloser nor spammable hard cc nor high autoattack damage for which she needs to get in position so additional MS won't help that much if it comes for the cost of DPS.

@Tipoldemor, Shadow-twin, Exuberance, NukRahj: thank you for the positive feedback. :)

Swains kit is by no means strong against Cassio.
If Swain wants to damage you with his ultimate he has to approach you, he basically can't avoid getting poisoned by your W - either this or you can zone him hard.
If he approaches you in order to stay in ultimate range you can land a sure stun.
Cassios's E has a stronger DPS than his ultimate has DPS/ heal.
If you build a Revolver and max E nover Q (Ocelote style) he can in now way defend himself against you.
You're talking about mana problems - but forgetting that Swain's ultimate actually is the most mana expensive skill ingame.
If you lay pressure on Swain he is forced to burn a lot of more mana than you have to.

Do you think that taking two MS quintessences and boots of swiftness for the aditional mobility would make her damage too low?

There is 2 points in this guide that i disagree in,
1) Maxing E is better than maxing Q in my opinion. (Personal Preference)
2) In the mid counters for cassi, Swain, Veigar and Ahri should be removed. Again just my opinion.
Good guide anyways +1 :D