Here is the full list of all 10 The Magister achievements.
Completed a game with 100% Conviction in 9 days at Diff III.
Get killed permanently in a game.
Completed a game with 100% Conviction at Diff II.
Completed a game with at least one skill from all 3 Specializations.
Completed a game with skills from exactly 2 Specializations.
Accused the murderer correctly at Diff I.
Completed a game with ONLY Intelligence skills.
Completed a game with ONLY Guile skills.
Completed a game at Difficulty Level 0.
Completed a game with ONLY Physique skills.