Winter's Shroud is an Encounter Racial Power that belongs to the Winterkin Eladrin race. It is granted by the Winterkin Heritage bloodline feat.
Winter's Shroud
Winterkin Eladrin Racial Power
When the enemy’s attack falls, snow swirls around you to
whisk you to safety.
Personal
Trigger: An enemy damages you with an attack.
Effect: You teleport 3 squares and gain concealment until the start of your next turn.