It'll Cost You is a warrior ability from the Vanguard tree in Dragon Age: Inquisition.
- Damage returned: 50%
- Strength on unlock: +3
- Reflects 1 point of damage for every 2 received in melee. Fractions are rounded down, making it possible that the ability will reflect no damage at all with high enough armor rating/Guard
- Reflects damage dealt to barriers, which does not benefit from armor or defense, thus allowing damage (and the reflected 50%) to be significantly higher
- Does not reflect any damage when Guard is active, even if the melee attack fully depletes Guard and causes residual health damage
- As of Patch 10, the ability has been improved, its damage return increased from the base game's 15% to 50%