It has been reported from the Holy Prophet (peace and blessing be upon his family): Whoever recites on the eighteenth night of Sha'ban, a 10 (5x2) Raka' prayer, reciting in each unit Surah Fatiha once and Surah Ikhlaas five times.
Allah would fulfill all the needs asked for on this night and if his creation is wretched, He would change it to be blessed and if he dies before the next year, He would change it to martyrdom.