Unique Passive - Lethality: After dealing damage to an enemy hero, executes the hero if their HP is lower than 4%. Gains 10 stack(s) of Lethality for each kill and loses 30% of current stack(s) for each death. Each stack of Lethality increases the HP threshold of the execute effect by 0.1%, stacking up to 80 times. (Execute Threshold: 4% - 12%)