Benefit: You get a +3 bonus on all checks involving the chosen skill. If you have 10 or more ranks in that skill, this bonus increases to +6.
Special: Extraordinary skill - Once per day your level of expertise in your chosen skill allows you to perform one act of "Extraordinary skill". You gain an additional +5 circumstance bonus to your roll when you choose to use your skill focus power. This is an immediate action.
Skill Power: Deceptive Tumbler - When you use Acrobatics to tumble past opponents, you gain +2 to your armor class vs. attacks of opportunity.