Contortionism
Class proficiency — see Proficiencies for the rules and the Proficiency Index for the full list.
The character is extremely flexible, able to squeeze or fold his body in ways that seem humanly impossible, such as squeezing between bars or escaping chains and restraints. He gains a +4 bonus to Paralysis saving throws to escape being grabbed, restrained, stuck, or wrestled. He can make a proficiency throw each round to escape from shackles or to slip between the bars of a portcullis. At 1st level the character must make a proficiency throw of 18+ to succeed. The target number reduces by 1 per level. If the throw fails, the character remains shackled. If it succeeds, he slips free of his bonds.