Engrams commonly come in five tiers of rarity: Encoded Engrams can be decoded immediately by players in the field. Coded Engrams must be decoded by Master Rahool or Master Ives until the Guardian reaches Reputation 1 and level 15, at which point coded engrams will be decoded immediately in the field. Encrypted and rarer engrams must always be decoded by Master Rahool or Master Ives. Any Encrypted, Legendary, or Exotic Engrams that the Guardian fails to pick up in the field will be sent to Kadi 55-30, where the Guardian can pick them up after returning to the Tower.​