Vigor

Vigors are the primary powers that players will attain in BioShock Infinite. Similar to Plasmids, they grant the user access to extraordinary abilites. How they modify the body to allow this is, at this point, unknown. Unlike Plasmids, which are powered by a single resource, Vigors have a limited set of charges before they are used up. Weaker Vigors (such as Electro Bolt and Telekinesis) will have more uses, while the more powerful ones (such as Murder of the Crows) will have less. Elizabeth will also be able to augment Vigors using her powers, making them more powerful yet hurting her in turn.