Mythbreakers are staunch empiricists. Magic, myths, legends; none of them mean anything unless they can be proven. A mythbreaker knows that much of magic is more showmanship than power, and even true wizards are never as great as they seem.
Skeptic: At 2nd level, the mythbreaker gains a bonus to Sense Motive checks equal to half his technician class level.
This replaces the technically minded class feature.
Experimentation (Ex): At 3rd level, whenever you make a Use Magic Device check, you may spend a move action or expend your martial focus to roll the check twice and take the higher result.
This replaces the invention gained at 3rd level.
Remove Magic (Ex): At 5th level, the mythbreaker gains the ability to use their Disable Device skill to dispel magical effects, as described under the greater trapmaster class feature. At 10th level, the mythbreaker can dispel multiple effects with each check, as described under the supreme trapmaster class feature.
This modifies the greater trapmaster and supreme trapmaster class features.
Rigorous Mind (Ex): At 11th level, the mythbreaker gains the slippery mind advanced rogue talent. This states that if the mythbreaker is affected by an enchantment spell or effect and fails his saving throw, he can attempt it again 1 round later at the same DC. He gets only this one extra chance to succeed on his saving throw.
At 15th level, the mythbreaker gains a +2 insight bonus to all Will saving throws.