Life Drinker (Su)
At 19th level, each time the magus kills a living creature with the black blade, he can pick one of the following effects: the black blade restores 2 points to its arcane pool; the black blade restores 1 point to its arcane pool and the magus restores 1 point to his arcane pool; the magus gains a number of temporary hit points equal to the black blade’s ego (these temporary hit points last until spent or 1 minute, whichever is shorter). The creature killed must have a number of Hit Dice equal to half the magus’s character level for this to occur.