Veteran requires you to level a Hero to Level 30.
Any Main Hero or Counterpart Hero will work. Earning this achievement unlocks the Cell Crystal Skin.
Related Achievements[]
Good Student - Completed the Tutorial. You deserve a cookie!
Pupil - Reached Hero Level 10
Veteran - Reached Hero Level 30
Defender of Etheria - Reached Hero Level 70
Group Hug - Raised a Hero of each type to Level 70