0.5.5e
A Killing Blow is any Hit Damage which successfully reduces a target to zero Life, killing them. Damage over time cannot cause Killing Blows.
25% chance to load a bolt into all Crossbow skills on dealing a Killing Blow with Supported Skill
Killing Blows from Supported Strike Skills against Rare monsters grant two of their Modifiers for 300 seconds
Recover 4% of maximum Energy Shield when a Supported Skill deals a Killing Blow to a Shocked enemy