A few days ago I posted about a shiny Trapinch in the battle tent on Pokemon Emerald, now There's this. i think I'll stop going to the tents now. : r/pokemon
Pokémon Emerald - Battle Tent
Battle Palace - Bulbapedia, the community-driven Pokémon encyclopedia
The poorly translated battle tent from Pokemon Emerald : r/pokemon
Pokémon Emerald - Battle Dome
Pokemon Emerald Episode 19: Routes 114 and 115, Meteor Falls, and Fallarbor Town Battle Tent - YouTube