1st - Hates these cans - At the start of combat, roll 2d20 for initiative; choose one of the results to apply towards your initiative and set aside the other result. At any point during the encounter, you can substitute the retained result for any d20 roll by yourself or an ally. If the retained number is not used by the end of the encounter, it is lost.
4th - Oh shit! - You add your Tier to your AC and Saves when flat-footed or surprised.
7th - Oof - If you are struck by a creature and take damage during an attack of opportunity triggered by entering or leaving a threatened range, you can move anywhere in their threatened range as a free action.
10th - Meant To Do That - When an opponent rolls a 20 against you, you treat your next roll against them as a natural 20.