hi guys and thanks for your comments and votes !! I agree with you reppinFTC when you say that it is important to have at least one activated passive at level one and when you want to put Greater Marks of Strength instead of Greater Marks of Insight because it actives spell vamp's passive and because by changing these marks i'll have 40 spell pen all the same then it's better: you've got a point !. The choice of Doran's Blade is good view to its skills but you can't transform it then you lost farming time all the more reason my item build cost lots of gold. Besides, life steal of Doran's blade is good for a range char because you will not be able to regen you life (if you don't want to back being mid-life) if you are out ranged by the ennemy. I'll change my marks and tank you one again ;)
P-S: excuse my english in case i do some grammatical mistakes.

Despite this guide being in french, I can still give you a comment and some suggestions. With your current rune/mastery setup, you have neither of Akali's passives activated at level one, which is what makes her relatively strong in the early game. This is BAD. You need to have at least one of her passives activated no matter what. I would suggest running 7 Greater Mark of Attack Damage as well as 9 Greater Glyph of Ability Power in order to activate her passives. Another alternative is to abandon the Attack Damage Reds and stick with magic pen, and get a Doran's Blade as a starting item. Apart from the passives, the item build seems pretty solid.

*99**9*9