Enemies ------- Hardener to use ---------- Damage type to use

Blood Raider --- EM/Thermal --------------- EM
Guristas ------- Kinetic/Thermal ------------ Kinetic
Sanshas ------- EM/Thermal --------------- EM
Serpentis ------ Thermal/Kinetic ------------ Kinetic
Angel. --------- All Resist (Explo/Kin) ------ Explosive
Mordus -------- Kinetic/Thermal ------------ Kinetic
Rogue Drones -- All Resist (Explo/Kin) ------ EM
Mercenary ----- All Resist (EM, Therm) ----- Thermal
Minmatar. ------ All Resist ---------------- Thermal, Explo
Gallente. ------- Kinetic/Thermal (sec. EM) -- Thermal
Amarr --------- EM/Thermal. -------------- Thermal
Caldari -------- Kinetic/Thermal ------------ Kinetic
The Seven ----- All Resist ---------------- Thermal
EoM ----------- Kinetic/Thermal ----------- Kinetic
Kha

NPC Damage Types:

Angel Cartel: Explosive, Kinetic, Thermal
Blood Raiders: 50% EM, 50% Thermal
EOM: Kinetic, Thermal
Guristas Pirates: 80% Kinetic, 20% Thermal
Mercenaries: Kinetic, Thermal
Mordu's Legion; 70% Kinetic, 30% Thermal
Sansha's Nation: 50% EM, 50% Thermal (YMP thermal)
Serpentis: 55% Thermal, 45% Kinetic
Thukker: Thermal
Amarr: 55% EM, 45% Thermal
Caldari: 50% Kinetic, 50% Thermal
Gallente: 60% Kinetic, 40% Thermal
Minmatar: 50% Explosive, 40 Thermal