transmutation 

Traditions primal

Cast [>>] somatic, verbal

Range touch; Targets 1 willing creature

Duration 1 minute

Choose one of the target's unarmed attacks. You cause that unarmed attack to shine with primal energy. The unarmed attack becomes a +1 striking unarmed attack, gaining a +1 item bonus to attack rolls and increasing the number of damage dice to two if it had only one.

Core Rulebook, page 349.