Matthias and his party easily dispatch the assassins sent against them by the corrupt local lord. Then, with the king's permission, they formulate a plan to take that lord in!
In other words, 
it will block his communication spell.
.بمعنى آخر، ستعطّل تعويذة اتصاله
Dadurch blockieren wir
seinen Kommunikationszauber.
Bloqueará su hechizo de comunicación.
Bloqueará su hechizo de comunicación.
Autrement dit,
il bloque leur conversation.
In altre parole, 
bloccherà la sua magia di comunicazione.
Ou seja, posso bloquear o
feitiço de comunicação deles.
Иными словами,
она мешает магической связи.