The Art of Breaking (Tamashiwara)
The character practices breaking wood, bricks, stone, ice, and glass with any body part.
Only 1 attack may be made during the round this skill is used.
The attack doubles the base rolled damage (without adjustments).
On a successful attack of 14+, the object attacked is broken.
On a roll of less than 14, successful or not, the MA takes ½ dmg. From the attack, even if the target suffers none.