English (Source)
1 Stack: <Highlight>+{AttackSpeed}% (+{AttackSpeedPerLevel}% per Commander level) </> Attack speed.
2 Stacks: <Highlight>+{ExtraTargets}</> Target.
3 Stacks: Any time an invader dies within range there's a <Highlight>{Chance}% (+{ChancePerLevel}% per Commander level)</> chance to automatically attack a random invader within range.
4 Stacks: Whenever this tower kills an invader, all invaders currently on the map gain <Highlight>1x</><Keyword>EBuffType::DREAD</>.
English Translation
1 Stack: <Highlight>+{AttackSpeed}% (+{AttackSpeedPerLevel}% per Commander level) </> Attack speed.
2 Stacks: <Highlight>+{ExtraTargets}</> Target.
3 Stacks: Any time an invader dies within range there's a <Highlight>{Chance}% (+{ChancePerLevel}% per Commander level)</> chance to automatically attack a random invader within range.
4 Stacks: Whenever this tower kills an invader, all invaders currently on the map gain <Highlight>1x</><Keyword>EBuffType::DREAD</>.