Valako, Storm's Embrace
Regenerate 0.5% of Life per second per Endurance Charge
15% more Damage if you've lost an Endurance Charge in the past 8 seconds
Gain 1 Endurance Charge every second if you've used a Warcry Recently 
Valako, Storm's Embrace is a notable Ascendancy passive skill for the Chieftain. It grants additional maximum endurance charge and life regeneration per endurance charge. It also grants more damage for each endurance charge lost recently, stacking up to 5 times.