In their primary role, they use silver tongs to place offerings into the Atash Dadgah, especially on holidays called Gahambars, such as Nowruz.
When members of this group work in teams of two, the more senior one is termed a Zaotar, while the junior assistant is called a Raspi. All members of this group are qualified to perform the jashan ceremony, used to commemorate major events such as wedding anniversaries. Members of this group who have obtained the title "Dastur" are also qualified to resolve legal disputes. Senior members of this group are the only people allowed in the pavi, a sacred space marked off by grooves in the floor.  These people may carry a barsom, a sacred bundle of rods. In their primary role, they use silver tongs to place offerings into the Atash Dadgah, especially on holidays called Gahambars, such as Nowruz. For 10 points, name these clerics who conduct services inside of a Fire Temple, often by reciting the Avesta. 
When members of this group work in teams of two, the more senior one is termed a Zaotar, while the junior assistant is called a Raspi.
Zoroastrian Priests [or Atharvan; or Magi]