Level 1
Intelligence: +10% chance of discovering hidden agents and armies
Infiltration: -6% chance of being detected by enemies
+1 cunning
Level 2
Intelligence: +20% chance of discovering hidden agents and armies
Infiltration: -12% chance of being detected by enemies
+2 cunning
Level 3
Intelligence: +30% chance of discovering hidden agents and armies
Infiltration: -18% chance of being detected by enemies
+3 cunning