Suggested by Sonic Gardevoir is a pretty powerful Pokemon and one that can even mega evolve. Her psychic powers will be far too great for Game and Watch to really do much of anything. He can change shapes and use some foods but none of those could break through Gardevoir’s barriers. Meanwhile Gardevoir just needs a few good energy blasts to end this fight. Her arsenal is quite large and the difference in power is unimaginable. Gardevoir wins.