The Norns perceived a threat in the far future and constructed a unique summoning spell intended to be used to combat said threat it remained dormant in the bloodline that became the O'Nasis in the 90's, what was meant as the first Grail War was intended to take place with the O'Nasis and another-

-clan by the name of the Shelby's were intended to partake in it by this time, word of this alternate summoning spell became known to the Shelby's seeing it as a cheat code to the grail war, the patriarch of the clan intended to either steal it or kill Theron's father this resulted in the O'Nasis-