Thanks on your help and your comment. And kitetina, about trinity/sheen i don't think that is a good item on skarner. You can go ad with trinity or other items but in late game you can have 1000000 dmg but they will eat you in teamfight because of skarners short range. But thanks to you all :)

I would say only go for Trinity Force if your team lacks damage or you wish to deal more damage. Otherwise, you can reach an endgame build much quicker with cheaper items. And yes, Frozen Heart is an amazing item on Skarner.

nice job.. there are a few guide types for this champ. i tried something like this and i dont like it. try this, u will maybe change your opinion:

Philosopher's Stone -> Boots of Speed -> Heart of Gold
then finish:
Mercury's Treads

and now i buy:
sheen (but i dont rush trinity)

After sheen i usualy go for frozen hearth, and then for trinity.
But thats my opinion.
GL

Always make sure to use spell check when creating a guide. It helps with the flow of the guide and the overall understanding by your readers.

Make sure to explain your reasoning about what you do more thoroughly. As I read through your guide I thought to myself, "Why does he do this? Or that?" and waited for an explanation.

About items: Have you ever thought about turning your Heart of Gold into a Randuin's Omen? It is generally more helpful than selling it to buy Thornmail. Also, a little bit of attack speed is extremely helpful on Skarner for his passive. Wit's End is a must have, in my opinion.

Other than that your build looks solid. Remember, you want your readers to know everything you do and why. Explain thoroughly.