Supportive

Supportive is a skill intoduced in Fire Emblem Fates. It is the Personal Skill of Corrin.

Fire Emblem Fates
When the Avatar acts as the support unit in an Attack Stance or a Guard Stance, the lead unit's Hit Rate is boosted by 10, damage by 2 and damage received reduced by 2. However, the lead unit and the Avatar must have at least a C support or higher to activate the skill.