First off, let me say that the Italian translation is very good all around 
but there are a few issues you may want to look into:
Every accented o (ò) is missing and replaced by a red X.
Accented i (ì) is also missing.
Disciple of the Ring’s text begins with “**Attivare 3 **:” 
Abbot of Keral Keep’s translated text says: “When this creature enters the battlefield, fetch {0} card. It gets {1} mana.
When this creature enters the battlefield, destroy {2} block {3} of gems.”
Effects that deal damage or give life are written as "deals damage equal to " and "gain life equal to ".
While technically correct, they would be more readable if they simply say “deals damage” and “gain life” 
Support cards are translated as Assistenza which is not really wrong, but “assistenza” sounds more like “customer service” than something that you can use in a battle. I believe that Supporto does a better job.
thank you all! grazie!