Runes of Resistance (Su)

At 6th level, a skyseeker can use his armor to shrug off all manner of magical attacks for a short period of time. As a move action, the skyseeker can gain spell resistance equal to 5 + his Hit Dice if wearing light armor or 10 + his Hit Dice if wearing medium or heavy armor. Dismissing this ability is a swift action. A skyseeker can use this ability for a number of rounds per day equal to his class level. These rounds need not be consecutive.