(-10%/-20%/-30%) melee attack skill for all enemy units. Action: Harass.
(-10%/-20%/-30%) melee defense skill for all enemy units. Action: Harass.
(-10%/-20%/-30%) shots per minute for all enemy units. Action: Harass.
(+6%/+12%/+18%) damage to all buildings. Action: Raid.
(-4%/-8%/-12%) slave population. Action: Raid.