Hey there!

I don't know if you'll understand this review, but I'll try to do my best to give you tips for improving your guide!
First of all, really great work doing a guide in your own language, by having more guides focused on different languages soon or later MOBAFire will become a worldwide community!
One thing that I'd recommend is embedding items/champions names (you can do this by adding "[[" and "]]" around them), this will make the text much lighter to read. Also, I'd refrain from using colors on entire paragraphs as the difference in contrast can make it hard to read on some devices (it's ok to use colors at certain parts of the text).
Also you can use [size=X] tag to enlarge titles (just like this)

Anyway, keep working on this guide, it has great potential to becoma a top guide!