Hang Tough!
Flexible melee attack
Trigger: 
Natural odd roll
Effect: 
Give a nearby ally temporary hit points equal to your Charisma modifier.
Adventurer Feat: 
                If the ally is staggered, double the temporary hit points.
Champion Feat: 
                Add your level to the temporary hit points given (add before any doubling).
Epic Feat: 
                You can choose yourself instead of an ally as the target of the battle cry.