To digivolve into Champion, Ultimate or Mega, you need to have an admin online.
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Level 1 - In Training
Level 10 - Rookie
Level 25 - Champion [Used for Lords 1 to 3]
Level 50 - Ultimate [Available only after the first three lords are defeated. Used for Lords 4 to 7]
Level 75 - Mega [available after lord 7 is defeated. Used for lords 7 and up. Final digivolution unless you are deemed worthy to have the next]
Level 100 - Super Ultimate [Staff Controlled. Strictly under Staff control. Only Mordecai or I can grant this.]