Deflection Aura (Su): Once each day, you can emit a 20-foot aura for a number of rounds equal to your cleric level. Allies within the aura gain a +2 deflection bonus to AC and combat maneuver defense.
Will this effect self or not?
Ally: Do you count as your own ally?
You count as your own ally unless otherwise stated or if doing so would make no sense or be impossible. Thus, "your allies" almost always means the same as "you and your allies."