Metamagic Mastery — Extend

The next spell the wizard casts will be cast as if extended as though using the Extend Spell feat. You can use this ability once per day at 8th level and one additional time per day for every two wizard levels you possess beyond 8th. Extend Spell: An extended spell lasts twice as long as normal. A spell with a duration of concentration, instantaneous, or permanent is not affected by this feat.