UPDATE in English:
After a lot of playtest versus different matchups (
Skred Fairies, Tron, Sliver Aggro, Heavy controls are the most important), I noticed that the deck is powerful, but it can easily run out of steam.
Therefore I suggest to all the infect pauper players to include a lot of drawing spells: you need to be able to cut out from your deck the most number possible of dead draws.
Also AVOID use tapped lands: you need to be able to play turn 1, turn 2 and turn 3. If not possible skip ONLY turn 1, otherwise you will easily get stomped by control decks.
These are my main 2 cents for this deck, take a look at my list and keep in mind what I said!
Enjoy and infect the meta!