Predicts the healing received from Death Strike.
The bar fills up the larger the expected heal will be, and the "bigger" the "better" heal.
Minimum heal is shown as a cut off bar - anything below this will result in the minimum heal.
The expected heal from Death Strike would it be cast right "now" - is displayed on the right.
Once a Death Strike is cast - the actual value will also be shown.
Can be configured under Options -> Addons -> Death Strike Healing Meter