"Shield Specialization was a Barbarian passive skill in early versions of Diablo III. It used to increase the chance to block with a shield by X% and the amount of damage blocked by X. This ability does not reappear in the revised skill system, but some Crusader skills and Sword and Board passive are reminiscent to it. Diablo III Pre-release Barbarian Skills Berserker Skills \u2014 Frenzy \u2022 Threatening Shout \u2022 Onslaught \u2022 Double Strike \u2022 Strong Constitution \u2022 Berserker State \u2022 Leap Attack \u2022 Enrage \u2022 Dual Wield Specialization \u2022 Savage \u2022 Speed Boost \u2022 Whirlwind \u2022 Slashing Strike \u2022 Relentless Attacks \u2022 Destroy ArmorJuggernaut Skills \u2014 Bash \u2022 Cleave \u2022 Ground Stomp \u2022 Focused Strength \u2022 Stubborn \u2022 Recovery \u2022 Taunt \u2022 Stunning Blows \u2022 Two-Handed Weapon Specialization \u2022 Invigorated \u2022 Seismic Slam \u2022 Revenge \u2022 Iron Will \u2022 Crushing Blows \u2022 Seismic EffectBattlemaster Skills \u2014 Battle Rage \u2022 Perseverance \u2022 Power of the Battlemaster \u2022 Iron Skin \u2022 Hammer of the Ancients \u2022 Battle Cry \u2022 Scavenge \u2022 Critical Attacks \u2022 Shield Specialization \u2022 Furious Charge \u2022 Ignore Pain \u2022 Deliberate Defense \u2022 Improved Battle Rage \u2022 Death Proof \u2022 Inspiring Presence \u2022 Natural Resistance \u2022 Mighty Hammer"@en . . "5"^^ . . . "Blocking with a shield"@en . "Warrior"@en . "None"@en . . . . . "3"^^ . . "Shield Specialization was a Barbarian passive skill in early versions of Diablo III. It used to increase the chance to block with a shield by X% and the amount of damage blocked by X. This ability does not reappear in the revised skill system, but some Crusader skills and Sword and Board passive are reminiscent to it."@en . "Prerequisites: Dex 15, Shield Proficiency (Heavy or Light) Benefit: You gain a +1 feat bonus to AC and Reflex when using a shield with which you are proficient."@en . . "You generate X extra Rage when you block an attack. You generate Y extra Rage when you Spell Reflect a magic attack."@en . "Shield Specialization"@en . . . . . "Shield Specialization"@en . ", Tier 1"@en . "Prerequisites: Dex 15, Shield Proficiency (Heavy or Light) Benefit: You gain a +1 feat bonus to AC and Reflex when using a shield with which you are proficient."@en . .