Ok, First of all the skills you must learn are:

1agger
2:Blink
3agger
4:Blink
5:Blink
6:BLur
7:Blur
8:Blink
9agger
10:Coup of Grace
11: Coup Of Grace
12agger
13agger
14:Blur
15:stat
16: Coup of Grace
17-25:stat

Explanation of the skills learn:
First of all, mortred can be classified into the 3 best heroes of dota. However in early game she is one of the worst heroes. This skill build is based on farming, scaping and giving the last hit to the oponent and helping to gank. That is why, in mid game im maxing the coup, and dagger.

Item Build:

The First Buil is the one i preffer and personally use and like the most:

We start with a quelling blade and 3-6 tangos (depending in allies, enemies and lane). If you are soloing or hvae a good partner, and u are a good farmer as me just get 3 tangos.
After you have enought money, u must get the ring of health which is going to allow u to farm for long periods. After that, we get the perseverance. This must be done in aproximately 6 min. In the next 4 minutes, focus in getting power treads (str mode) and 2 wraith bands. In min 11 your inventory should have this 4 items. During early game, ALWAYS HAVE A TP WITH YOU SO ITS HARD FOR YOU TO DIE.
Mid game:
In mid game, which is between min 11-30, you should get enought for your batlefury and dominator. In this point your are able to and your not easy to kill anymore. ( if you have nukers get black king bar before batlefury).

Late Game: 30min- until the end of the game
For minute 35 you must hav your hyperstone,and in minute 44 you must have mkb. With this items it's usually gg. But if the dota continues, finish your cuirass and get divine. If the dota does not finishes yet you have three options for the last item slot ( cranium basher- Guinsoo- Butterfly-blade mail)

With this kind of build in late game you are almost undefeatable. The only heroes that can defeat you are : dark terror, trollwarlord). But ith blademail if they hit you they are getting huge amounts of damge which = to dead, and if they dont atack you, with 2-3 crit they are dead.


2nd Build Option:
This is more a pussy build, but stills being good.

First start with a ring of regenerations and a courier. WE save until we have 2 wraith bands and a power treads in str mode.This MUST BE DONE IN MINUTE 8. After you have this ready, save for Sange & yasha( yes sange & yasha ill explain why later). After S&Y get butterfly which stacks now, because it aitn miss anymore it's dodge. This must be done in minute 20.

And finnaly, you can get bkb and bloodstone or heart of terrasque or vladimir, and mkb

The reason why you get this items is because witht his build your are keeping a low profile in almost all the game. Even in late game your depending alot in your allies. With the build 1 you can go against 4 heroes and still win or at least do a triple kill. However, with this build tyour the last hero in entering to batle. Sange & yasha helps to gank and not failing in ganks and having more hp in the mid and early game. I'll add images in later guides this is the first one and i hope you like it, type me comment to my mail manuel_9413@hotmail.com ill be pleased to answer all your questions and ill upload replays soon.