Sodan's Cloak Revised

Sodan’s Cloak from the stargate mod used a system of draining health so people wouldn’t abuse the invisibility.
Instead of doing that, how could it be possible to make a cool-down system instead?

For example, it lets you cloak for 5 seconds and then takes 10 seconds to use again.

If any details are needed, just ask.

Thats the point of the cloack - being invisible at the cost of your health.
Also your basically asking for a “Dead ringer” with blue overlay.