Comment by Rumpel on Overgeared - Chapter 221

@Rumpel basically he made a very op weapon but due to him making it for the tournament, the ownership of the sword goes to the tournament and he doesn't get to keep it.

It's like opening a pokemon card pack for charity and pulling a extremely rare card only for it to go to charity instead of keeping it.

@Rumpel he created a grade growing weapon, which until now was never known the method of creation and believed to be impossible to make. Is a weapom that can gain experience and become stronger, in long term can surpass a legendary weapom. 
Grid is frustated because he made by accident, but if he kept the sword he could analazy it to try to learn how to recreate the effect.