What four Pokemon are on the Gen 3 Pokemon Mount Rushmore?

Board 8

Mudkip
Gardevoir
Flygon
Nuzlocke

..."Nuzlocke" as in the specific Nuzleaf with John Locke's face is fine, right? Otherwise just Nuzleaf.
Help control the pet population. Have your pets spayed or neutered!
RIP Bob Barker (1923 - 2023) - and thanks for all the memories.