Frost Dagger – Lvl 3 +1 680 gp

Enhancement:
Attack rolls and damage rolls

Critical:
+1d6 cold damage per plus

Power (At-Will ✦ Cold):
Free Action. All damage dealt by this weapon is cold damage. Another free action returns the damage to normal.

Power (Daily ✦ Cold):
Free Action. Use this power when you hit with the weapon. The target takes an extra 1d8 cold damage and is slowed until the end of your next turn.