Vampiric Spell
Feat 4
Source Pathfinder Impossible Magic
Your magic drains the life from your enemy. If the next action you use is to Cast a Spell that deals damage, you gain temporary Hit Points equal to half the initial damage a single creature takes from this spell; calculate these temporary Hit Points using the creature that took the most damage from the spell. These temporary Hit Points last for 1 minute.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
ConcentrateAn action with this trait requires a degree of mental concentration and discipline.
NecromancerThis indicates abilities from the necromancer class.
SpellshapeSpellshape actions tweak the properties of your spells. You must use a spellshape action directly before casting the spell you want to alter. If you use any action (including free actions and reactions) other than casting a spell directly after, you waste the benefits of the spellshape action. The benefit is also lost if your turn ends before you cast the spell. Any additional effects added by a spellshape action are part of the spell's effect, not of the spellshape action itself.