Ruined King: A League of Legends Story
52 Achievements
40-50h
GOG
Full Potential
Reach Level 30 with any Champion
11.6%
How to unlock the Full Potential achievement in Ruined King: A League of Legends Story - Definitive Guide
WhiterValkyrie
TrueAchievements
TrueAchievements
This the max level. The description says any champion but in reality you'll reach this level with all the champions at the same time. There is no need to grind for this, you'll reach the level 30 before the last boss if you do all the quests.
The, Pants, Party
This achievement will come naturally as you finish up all the other achievements.