https://github.com/ToroCraft/NemesisSystem/blob/master/java/net/torocraft/nemesissystem/util/HandleNemesisTraits.java#L65

HEAL - uses potions and will heal his bodyguards
LASER - uses the guardian's laser attack (look at FIREBALL for an example)
POTION_PROTECTION - not sure; I'm guessing will use potions of fire resistance and such