Vilkras

ECM type
-Amarr ---- Radar = White Noise
-Caldari --- Gravimetric = Spatial Destabilizer
-Gallente -- Magnetometric = Ion Field
-Minmatar - Ladar = Phase Inverter

NPC Damage types
Guristas - Kinetic / Thermal
Serpentis/mordus - Thermal / Kinetic
Blood Raider - Thermal / EM
Sansha's Nation - EM / Thermal
Angel Cartel - Kinetic / Explosive / Thermal
Minmatar Fleet - Thermal / Explosive
Amarr Navy - EM / Thermal
Rogue Drones - Thermal / Kinetic / EM

Best Damage to NPCs
Guristas - Kinetic
Serpentis - Thermal
Mordus - Thermal/Kinetic
Blood - EM/Thermal
Sansha - Thermal
Angel - Explosive
Mercenary - Thermal
Seven(Zazzmatazz) - Thermal

Stacking Effectiveness:
1st mod: c(1) = 100,00% effectiveness
2nd mod: c(2) = 86,91% effectiveness
3rd mod: c(3) = 57,06% effectiveness
4th mod: c(4) = 28,30% effectiveness