[Other] thought of a new idea for a emerald rom hack unless its been done before in which case id like a link to it

basically make all the catchable pokemon in the game either from the uu underused smogon tier for that game or from the nu never used smogon tier for the game. so make all ou bl uber pokemon for that gen banned from catching its would be a fun challenge going through the battle frontier using only under used or never used pokemon. basically i want make the battle dome more challenging because its fun. an example of what it would look like is this: agron, shiftry, walrein, manetric
in the battle dome something like that