Lightning Rod

Whenever a single creature, within 30 ft. of you, is targeted with an ability, attack, or spell that deals Lightning damage, you can use your reaction to redirect the energy into yourself, becoming the target. 

Additionally, whenever you're first in an area of a Line effect that deals Lightning damage (like a Blue Dragon's Breath weapon), you can use your reaction to make the saving throw before the creatures behind you, if you succeed, the creatures behind you take no damage, if you fail, they take damage as if they succeeded. This feature does not work for Cone effects.