Sword of Lightning and Thunder

(Requires Attunement)
You have resistance to Lightning and Thunder
damage. You have a +2 bonus to attack and
damage, and an additional 2d6 Lightning damage.
When you roll a critical hit, the target must make
a DC 16 Con save or be stunned until the end of
your next turn. Once a day, as an action, you can
cause a lighting bolt to leap from the tip in a 5ft
by 120ft line. Any creature in that line must make
a DC 16 Dex save taking 8d6 lightning damage on a failed save or half damage on a successful