From Dota 2 Wiki
|A powerful shield that defends its wielder from even the most vicious of attacks.|
Proc Chance: 50%
Blocked Damage (Melee): 70
Blocked Damage (Ranged): 35
- Grants a large amount of health and protection from attacks, works well with blink.
- Effective to block the damages from illusions (excepted from Chaos Knight's ultimate which copy his full damage and can crit) and summoned units.
- It is especially useful with tanky frontline heroes that need to survive much damage, like Bristleback, Spectre, Centaur Warrunner or Axe, with units that overall take amplified damage, like illusions, and against low damage units like Windranger without Aghanim's Scepter or Phantom Lancer's illusions, which hit often but not hard, causing many block procs that block attacks entirely or almost entirely. On the other hand, it is less useful for heroes with high armor, like Dragon Knight or Sven.