Get 99 of any artifacts:

To get 99 of any artifacts at the spirit forges 
trade in your blood for the artifacts and use the 
blood refill code. Continue this until you have 
99 of whatever artifact you are recieving from 
the spirit forge.


Blood Refill: 

While playing, press Up, Right, Square, Circle, Up,
Down, Right, Left to refill your blood.