The Glitch World, located in a computer in the Agate Circus and created by Terra, is the fourteenth gym in the Reborn League Challenge. It is based off numerous locations from the Kanto and Reborn regions, such as Mt. Moon and the Byxbision Wasteland. Lead by Terra, this gym specializes in Ground types.
A telecominicator for Terra's Gym is not located in the Glitch World, but in the backstage of the Agate Circus.
Glad you picked up. I heard from Cal about what's going on. I never would have thought Terra of all people would be a Meteor... I mean, I never liked her anyway, so whatever. But goodness...
Anyway, I patched into her computer after I heard there was something up with it, and I can see it reporting her presence. ...I'm not going to question how she managed to enter a computer world at all; that girl already defies logic. I'm running an analysis now-- hold on, and I'll tell you what to expect.
The results are... strange. It looks like the computer environment is set up to simulate an old video game. In this game, attacks are physical or special based on what type they are. Plus, the Special Attack and Special Defense stats are treated as a single value-- it looks like it works off of which ever stat is higher.
Finally, the Dark, Steel and Fairy types seem to have been erased. This all sounds familiar, right? Keep these things in mind when you're in there. I know you can do what's necessary.