On the turn it is selected, Meteor Beam will raise the user's Special Attack by one level. On the following turn, Meteor Beam will do damage, PP will be deducted from it, and it will count as the last move used. Once Meteor Beam is selected, the user won't be able to switch out until it is disrupted or fully executed.
Sleep, freeze, partial trapping, and flinching will pause but not disrupt the duration of Meteor Beam.
If a Power Herb is held by the user, Meteor Beam can be executed in one turn.