+1% Chance to Block Attack Damage for each time you've Blocked in the past 10 seconds
80% increased Physical Damage if you've Blocked Damage from a Unique Enemy in the past 10 seconds
+4% to maximum Chance to Block Attack Damage 
Violent Retaliation is a notable Ascendancy passive skill for the Gladiator that grants increased maximum block chance and increased physical damage and block chance for each hit blocked in the past 10 seconds. It also grants a large amount of physical damage bonus if you have blocked a hit from a unique enemy in the past 10 seconds.