Ok so to quickly sum up this build for you, this is Akali build is an extremely overpowering so expect to be abused a lot. During the early stage of the game this build allows great harassment so that you and your teammates can kill minions while keeping the enemy at bay. By mid game ganking shouldn't be a problem quickly killing enemy champions without taking in much damage, also by mid game tower diving should not be a problem. At end game you are virtually unstoppable with your full build you can quickly take out an entire team whilst your allies take down there turrets and inhibitors but most of the time you'll find the enemy is quick to surrender because they are getting ganked within ten seconds of spawning.

Alright so to start off you want to get boots of speed, this allows fast travel up the lane and allows an easy chase for first blood. Next on your list is the Hextech Revolver, this will increase your Discipline of force boosting your attack with extra magic damage and giving you some spell vamp to stack with your Discipline of might. Next is probably your most valuable piece in early game 'Sheen' After using an ability your next attack deals 100% increased attack damage, Sheen combined with mark of assassin gives a deadly result. Mejia's Soul stealer now this is one mean item every kill you gain 2 stacks of Soul shards or whatever there called, each stack increases your ability power by 8, at 20 stacks you gain 15% CD reduction, getting this to 20 stacks is easy but try not to die, every time you do you lose a third of your stacks. Now lets upgrade those old boots into Sorcerers Shoes giving you 20 magic pen increasing your extreme spell damage even further. Now this is where the fun starts 'Lich bane" the effects increase your next attack by 150% of your ability power now this with mark of assassins takes anyone down to half health end game. Hextech is a useful item giving life steal and spell vamp, when you gain this your spells heal at least 300 health giving you great survivability. Now Rabadons Deathcap is amazing on Akali increases AP by 140 AND if that wasn't enough increases AP by 30% of current AP this is basically end game, you now can destroy the entire team and not lose health and also while attacking tower use an ability then hit a tower, you can hit up to 900 damage on a tower. Guinsoo's Rage Blade this is just a bit of fun, you will probably never reach this because the enemy team will surrender way before you can afford this. And there it is the most OP akali build ever seen.