Both magic and battle arts moves now feed from this meter and you can easily adjust the number of regular vs ashen estus flasks you carry in your inventory. (techradar.com)
Since the first Dark Souls, weary adventurers have learned to love their trusty estus flask, an HP - restoring potion with charges that refill at bonfires. (polygon.com)
This blue flask restores FP and, as with the regular estus flask, is refilled at bonfires. (polygon.com)