PUnseen Threat
When Kha'Zix is not visible to the enemy team, his next Attack against a champion deals an additional (22 / 29 / 36 / 43 / 50 / 57 / 64 / 71 / 78 / 85 / 92 / 99 / 106 / 113 / 120 / 127 / 134 / 141 (Lv1–18) + 50% Bonus attack damage) magic damage and Slows by 25% for 2 seconds.
Enemies with no nearby allies become Isolated.
