Health shred idea.

If ever a rework for magic pen comes like it did for armor pen here is what i think would be good. Health shred. Aka lower the total amount of max health an enemy has on hit for a moment.

Ex/ On hit targets health is reduced by 25% for 0.2 seconds. Cooldown 40 seconds.

So any damage they sustain would be calculated from that lowered max health to and equal percentage. Or this could just be a single item idk.