Arcane Fists

Your physical training encompasses unarmed
combat forms. The damage die for your fist
changes to 1d6 instead of 1d4. You don't take
the normal -2 circumstance penalty when
making a lethal attack with your fist or any
other unarmed attacks. Your unarmed attacks
gain the arcane trait, making them magical.
At 5th level, you also gain the critical
specialization effects of unarmed attacks in
the brawling group and weapons in the
brawling group.