I'm trying to explain it the easiest way I can. Once I let you borrow it you don't need to search on the GTS. You already have it's FULL ENTRY in the Pokedex. The only reason you should be able to want it anymore is just to waste space in your boxes. Just saying.
Also here's a tip:
I'm guessing it's name is/was Glurak? Glurak is it's German name.