EffectDamageIncrease

The   NWScript command creates a damage increase effect, an effect that will increase the damage inflicted in combat by whatever it is applied to. This effect can only be meaningfully applied to creatures, and it should be applied temporarily or permanently (not instantly).

Definition
Not using a DAMAGE_BONUS_* constant for the first parameter is likely to result in unintended behavior (because, for example, DAMAGE_BONUS_6 is not the number 6).

An invalid damage type (such as DAMAGE_TYPE_BASE_WEAPON) supplied as the second parameter defaults to magical damage.