Penetrate your opponent's guard and inflict damage.
Special Effect #4
Health decreases every time you attack.
Wayakin is Rock's strongest weapon in Soulcalibur IV. It can be bought in Character Creation for 18,000 Gold after completing Story Mode with Rock. It has Hyper Mode equipped by default as a skill, which allows players to increase their stats for a certain amount of time by pressing A+B+K simultaneously during a fight.