Upon pick up, choose a Skill card. At the start of combat, it will be in your hand.
The card is added to your normal starting hand. It takes the place of a drawn card.
Bottled Lightning is not the same as Innate. Duplicating a Bottled Lightning card will NOT draw the copy at the start of your hand (whereas it would if the card had Innate).
Bottled Lightning is an Uncommon Relic.