I just looked up what the Japanese term 'waza' means: something along the lines of technique, skill or a move, as in a martial arts move. So this is distortion, but with proper dialed-in ninjitsu-steeze. 

Model: Boss DS-1w Waza Craft Distortion
Made: Japan, recent model (serial 04588)
Type: distortion
Power: standard 9v negative supply or 9v battery (not included)
Switching: buffered bypass
Equivalent new street price (approx): $245aud
Mods: none
Accessories: original box or manual
Condition notes: used, no major marks, fully functional. Overall: excellent condition