Weapon Awash (4e Power)

Weapon Awash	Dragonslayer 4e Power Type::Utility 1
As you swing your weapon, it leaves a sheet of water in its trail that obscures you from your foe.
4e Power Usage::At-Will  Primal, Cold
4e Power Action Type::No Action	Personal
Trigger: You make a basic melee attack.
Target: The enemy you hit.
Effect: The target takes extra cold damage equal to your Wisdom modifier, and you gain concealment against the next attack the target makes against you before the end of their next turn. Level 21: The extra damage increases to 5 + Wisdom modifier cold damage.