Hello,
My last version of this build was pretty much focused on normal match setup, here i will describe some aspects of ranked match, laning phase, team compositions, teamplay etc.
I will simplify some of old chapters and generaly refresh everything.

For Morgana I take:
Greater Mark of Magic Penetration as a standard for ap caster
Greater Seal of Armor This additional armor gives you some additional survivability vs early ganks.
Greater Glyph of Cooldown Reduction gives you cdr that is VERY usefull cause of long cooldowns.
Greater Quintessence of Movement Speed It's my personal choice, great choices are Greater Quintessence of Magic Penetration or Greater Quintessence of Ability Power

Soul Siphon
Hmm... one of the best passive abilities in the game, with this one you can stay at lane for a very long time.


Dark Binding
Dark Binding have a bit longer range than circle show.


Tormented Shadow
That's your main farming and healing tool, at 3rd lv of this spell you can clear whole minion wave


Black Shield
Gives you ability to block stuns, slows, silences... any Crowd Control effect. That's your main utility spell.


Soul Shackles
AoE slow than stun accompanied with Great damage, bad thing about this spell is that it have also non-official AoE taunt ;)

I think for now every ap mid caster take Ignite and Flash maybe Teleport works also but left it for solotop.

I take Ignite cause for first kill I almost always need a bit more damage it also counter every try to heal so its the only choice for offensive spell.

Flash can be used to initiate aswell as escape, its mainly defensive spell, but useful through entire game.

I will still leave old build because its perfect for normal games.

Normal Match item setup

Start with Doran's Ring followed by Boots or 2nd Doran's Ring at this point you're able to kill your enemy. Build Sorcerer's Shoes out of Boots and then go for Rod of Ages. After that you can chose between: Rabadon's Deathcap, Zhonya's Hourglass and Abyssal Mask. Rabadon's Deathcap gives you a lot of damage, Zhonya's Hourglass helps against fed offtanks and Abyssal Mask protect you from being nuked. You should build all those 3 items but order depends of enemy team.

Standard Build:
- Doran's Ring
- Sorcerer's Shoes
- Rod of Ages
- Abyssal Mask
- Rabadon's Deathcap
- Zhonya's Hourglass



Solo Queue item setup

Start with Boots and 3x Health Potion. If you have very good enemy at lane stack Doran's Ring up to 3 if not rush Sorcerer's Shoes and right after Rod of Ages, then chose Zhonya's Hourglass or Abyssal Mask and AFTER that build Rabadon's Deathcap if situation is really bad build go for Thornmail(ARM) or Banshee's Veil(MR).

Standard Build:
- Sorcerer's Shoes
- Rod of Ages
- Abyssal Mask
- Zhonya's Hourglass
- Rabadon's Deathcap
- Banshee's Veil/ Guardian Angel/ Thornmail



Ranked Team Queue item setup

That pretty much depends of your team, what it needs etc. but I have standard build that can be modified.

Start with Boots and 3x Health Potion then rush Rabadon's Deathcap for maximum damage, you should also consider boots: Mercury's Treads or Sorcerer's Shoes
then go for Zhonya's Hourglass. At this moment you will need some HP, so lets consider choices: if you think that game will be very long go for Rod of Ages if not go for Banshee's Veil. If you have ap solotop build Will of the Ancients and Abyssal Mask if not build only Abyssal Mask and finish your build with Guardian Angel.

Standard Build:
- Sorcerer's Shoes
- Rabadon's Deathcap
- Zhonya's Hourglass
- Rod of Ages
- Abyssal Mask\ Will of the Ancients
- Guardian Angel\ Abyssal Mask



Remember that those are STANDARD builds, this build should be based on your and enemy team... remember that.

'Cool Story':

Your initiator dashes into enemy team, they are scared of his power, you go after him with your flash (or not) and pop up your Soul Shackles and put down Tormented Shadow, every singe foe starts attacking you in rage, you are crumbling under their pressure and suddenly every opponent stay stunned, your team finish almost everyone but one of them starts running away with less than 100hp, you put your Tormented Shadow under him scoring ACE -> go for nexus and win.

That's how teamfights should looks.

Maybe you know maybe not, one of the most important thing is Team Composition, thats champion setup, your and enemy. I'm going to present here 2 best compositions that i have found.


TeamComp1:

Solotop: Kennen
Mid: Morgana (ofc..)
Jungle: Amumu
Bot: Vayne& Nunu & Willump

You can say that its almost full AP and you just have to kill Vayne and that's all, well this team is based for early and fast win and fed Vayne, with this amout of CC's you can stop everyone.


TeamComp2:

Solotop: Nasus
Mid: Morgana
Jungle: Galio
Bot: Sivir& Nunu & Willump

This 2nd team is based for late game, some say that nasus is weak now and is very easy to counter, well everyone know that good Nasus in late one-hit everyone, Sivir have Ultimate that synergy well with Nunu's attack speed and movement speed buff. Galio and Morgana can catch enemies pretty easy what makes easier for Nasus to focus enemy's carries.

Pros:
-Morgana have great farming tool
-ultimate can change result of the teamfight
-She is nearly ungankable
-Can solo without problems
Cons:
-Ultimate works also as aoe taunt

1.0 - Build created
1.1 - Client update to 1.25.26, removed zhonya's ring, added zhonya's hourglass and rabadon's deathcape so i change it :)

2.0 - Totaly reworked build. Changes:

Added chapters
-Developed ''Summoner's Spells'' chapter
-Changed ''Runes'' chapter
-Chapter ''Items'' split to ''Builds'' and ''Situational Items''
-Chapter ''Strategy'' split to ''Farming'' and ''Teamfights''
-Changed title ''Conclusions'' to ''Pros/Cons''

2.1 - Changed Runes

-hp per lvl seals changed for flat armor
-flat hp quintessences changed for flat ap

3.0 - General Rework

-old icons replaced with new from mobafire's database
-reworked every chapter
-refreshed descriptions

-Added Introduction
-Added chapter 'Team Composition'

-Changed

Greater Quintessence of Ability Power to Greater Quintessence of Movement Speed
-Chapter Builds have now 3 subsections, Normal, SoloQ and Ranked Team.


3.1 - Little changes in text...
3.2 - Little tweaks in text.
3.3 - Another changes in text.