Gift of Hedone: The Lust Combo Meter

Hello you wonderful deviants,

Regarding your Ultimate state "Lust" currently I know how I intend to increase the maximum lust bar which would ultimately increase the length on your ultimate - but by making it larger, it means it will take longer to unlock. So I was trying to think how can the player fill up their lust meter quicker?

And what I am thinking of is a lust combo meter - the higher the combo, the quicker your lust will build up - and once you use your lust, it will reset the combo.

So what is the combo tracking?
I was thinking about making it enemies you eliminate, but I wasn't sure how many enemies you will realistically encounter in one area - so similar to how the cooldown attacks work - it will be based on enemies hit - with some differences.

First, unlike the attack cooldown, it will treat each individual hit as a contributor to the total. So in short, if an enemy takes damage - the counter would go up.

Secondly, Abilities will contribute to the total, not just your basic attack.

The other side to the combo will be that taking damage will effect your combo also - however I'm not sure if i want it to completely reset your cooldown n damage taken, or just reduce it by a certain amount.

This leads me into asking you, how would you prefer the combo counter to be reset?

Option 1 - If you get hit, it resets back to Zero

Option 2 - If you get hit, it doesn't reset fully, it halves your combo counter. (i.e if you had a combo of 50, getting hit would drop it to 25, or if you had a combo of 60, it would drop to 30 etc)

Option 3 - If you get hit, it doesn't fully reset - it just drops by a set amount each hit (for example by 10 each hit - so if you had a combo of 50, and get hit it would be 40, then 30 etc.)