What's a jigawatt? – Always shock. Shoots straight forward with a lightning graphic and explodes on impact. Character may shout "Lightning Bolt!" and a custom throwing sound will be heard after use while playing in Tiny Tina's Assault on Dragon Keep. Regenerates a grenade every 25 seconds.
The flavor text is a reference to the 1985 movie Back to the Future, where a lightning bolt is said to produce 1.21 gigawatts of energy. (The correct pronunciation of "gigawatt" is with two hard Gs, like the first G in "Gaige"; in the movie, however, it's spoken with a soft g sound, like the second or the letter "J".)
The phrase, "lightning bolt" is a reference to a Youtube videoin which contains a reenactment of a LARP ogre battle.
With a Lightning Bolt equipped, Axton may also shout "Lightning Bolt!" when he deploys his Sabre Turret.