Available to NEC 1+ and to certain undead monsters. If you successfully activate this heroic deed, your current Hit Points change as follows: your current HP become equal to the total number of HP you have lost thus far in this encounter.
A necromancer may attempt this deed only once per combat round, and not more than once in a given encounter.
A dracolich may use Necropivot a single time in any given combat encounter.
Example: Sarloch is a FGT 4/MAG 3/NEC 3 with maximum HP 49. In combat, he is dropped to 20 HP after getting caught in a fireball (a loss of 29 HP). He's able to quaff a potion and regain 17 of those, putting him back up to 37 HP but then takes an arrow from a longbowman's enchanted weapon and ammunition, dropping to 12 HP (a loss of 25 HP). So he's lost a total of 54 HP during the entire encounter.
He's now out of potions and in dire straits, so he activates Necropivot. It succeeds, and his current HP (12) pivot and become equal to the total HP he's lost thus far in this encounter (54). This puts his at his maximum (49), plus 5 more temporary HP.
For every ten HP (or fraction thereof) lost in an encounter before activating this deed, there is a 1% cumulative chance that you gain a percentile point to either WIS or INT — your choice.