The Players' Guide to the Cities/Leveling
< The Players' Guide to the Cities
To advance in level through the game, you must acquire experience points by winning fights and completing missions.
When you acquire enough experience to reach a new level, your combat level will automatically increase. However, before you can choose new powers or assume any of the other perks of an increased level, you must first visit a trainer. Trainers are scattered throughout Paragon City and the Rogue Isles.
In addition to being able to add a power at every even level (through Level 32), there are other advantages that you gain as your character advances. You get additional slots for enhancements (received at every level without a new power slot), additional slots for inspirations, and the ability to select a title, etc. A complete list of benefits gained when you train for each successive level can be seen here: Leveling Chart.