The history of Power began as an early result of fighting in the earliest arenas and battles of Akeroth. Early warriors learned that when a warrior had enough power to crush his opponent before they even engaged in combat; then he would win.
Power was developed and refined from the great Champions of Batesian; who could shatter shield walls with one swing of their sword.
Power was also developed from the Mercenaries of Tirafel; who were paid to engage in acts of pure destruction. It became a discipline that was passed down to those who died for strength.