"The finely honed skills of the assassin enable her to strike with deadly force."
The Assassin Job class is available to Viera in Final Fantasy Tactics A3.
They can attack from afar or inflict various statuses or Instant Death up close. It is based on crippling or downright defeating foes. A deadly combo is pairing an Assassin with a Green Mage. A Green Mage's Tranq Magick can make an Assassin's Last Breath ability very accurate against close range classes (less so against mages and the like). A special treat for the Assassin is having the ability to equip Katanas and Greatbows; enabling them to attack at either close or far range. A particularly powerful set utilizes a Greatbow, Ultima Masher, and the Blood Price Support ability to fling Ultima every turn while staying out of harm's way. Also noteworthy are her movement stats (including Speed), which are perfect to begin with.