Effective against

Effective against (also known as effectiveness ) is a keyword, often found in skill descriptions, which means the calculated attack value against certain types of enemies is granted a +50% (×1.5) multiplier, before being mitigated by the enemy's Def or Res stat.

Bows, for example, are effective against type units, while  weapons are effective against  users.

Some skills, such as, negate certain weapon effectiveness bonuses, such as from. Other skills, such as, will negate movement type effectiveness bonuses, such as from bows. Yet others, such as, cause skills effective on other units to also be effective on the wielder.

The passive skill, grants the set: Effective against dragons status effect to adjacent allies, allowing those allies to deal effective damage to dragon foes. However, The effective damage applied by set: Effective against dragons does not stack with existing effective damage. In order to avoid effective damage from a foe with set: Effective against dragons and an effective weapon, a unit must neutralize all sources of effectiveness. For example, if is also effective against a unit, that unit must neutralize "effective against armored" and "effective against dragons".