BLOODMANA

reference
The "BloodMana" skill empowers mages to continue slinging spells even after depleting their mana reserves by tapping into their own life force. As a last resort, the skill utilizes the mage's hitpoints, allowing them to sling spells at the cost of their health, posing a potential risk of fatal consequences if not wielded judiciously. This desperate yet formidable ability adds an element of strategic sacrifice to a mage's arsenal in the face of dire circumstances. See also:: Arcane Torrent