Battle-Scarred Veteran is an . It is available to martial classes with a Constitution of 13. [Dr368:59] It modifies the following powers: * Crushing Surge (Fighter): If you have no temporary hit points when you use the exploit, you gain +1 bonus to the attack roll. * Deft Strike (Rogue): If you take damage from an opportunity attack provoked by the movement, reduce that damage by your Constitution modifier. * Nimble Strike (Ranger): If you shift before tha ttack and you hit, you can also shift 1 square after the attack. * Viper's strike (Warlord): If the target provokes an opportunity attack from you ally and the attack hits, it deals extra damage to your Constitution modifier.