The character card Firmness gives him all his health back if he loses it. It can only happen every 45 seconds to 10 seconds with an aleph super boost (Rare card description). The card its self is bugged to were sometimes it still puts you in a downed state even if the UI says you have 60 health points and sometimes I find that it actives too early whenever I have half or less of my health. It is one of his better cards for antagonist play sense it basically gets rid of the fact you only have 60 health points however once you get use to CQC and using his stalk effectively Id recommend changing it to another card. Although firmness is still a good option to have in any game