Fortress Ballista is a Legendary Hand Crossbow for the Demon Hunter in Diablo III, added in patch 2.4.0. It requires character level 70 to drop.

The unique affix effect stacks and renews with each application: the potency is added to the remaining one, and then duration refreshes. Any attack suffices regardless of Proc Coefficient and number of enemies hit. Ashnagarr's Blood Bracer does not affect this shield.

Stats (Level 70)


Fortress Ballista
Legendary Hand Crossbow


  • 672.0 Damage Per Second
    • 126–714 Damage
    • 1.60 Attacks per Second
  • +626–750 Dexterity
  • One of 7 Magic Properties (varies):
  • Attacks grant an absorb shield for 2.0–3.0% of maximum Life, stacks up to 10 times.
  • +3 Random Magic Properties

The Fortress Ballista was famously used by Valla during the Siege of Bastion's Keep. A strangely garbed wizard infused it with a spell on the spur of the moment, apparently conjured from nothing, when it seemed their fate was sealed.

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